Answer:
The instructions for making proteins are coded in the (cytoplasm / DNA / endoplasmic reticulum / nucleus) of a cell. In a eukaryotic cell, these instructions are located in the (cytoplasm / DNA / endoplasmic reticulum / nucleus).
Explanation:
The genetic code is contained in DNA, or deoxyribonucleic acid. This is usually the same among most organisms, save some RNA viruses. But in eukaryotes, the DNA is in the nucleus, whereas in prokaryotes the DNA is in the "nucleoid region", or a twisted up section near the middle of the cell.
The instructions for making proteins are coded in the DNA of a cell. In a eukaryotic cell, these instructions are located in the nucleus.
What is DNA?Deoxyribonucleic acid is a polymer made up of two polynucleotide chains that coil around each other to form a double helix that contains genetic instructions for the development, functioning, growth.
it is also involved in reproduction of all known organisms and viruses. Nucleic acids include DNA and ribonucleic acid.
The information molecule is DNA. It stores instructions for the production of larger molecules known as proteins.
These instructions are stored in the nucleus of each of your cells and are distributed across 46 long structures known as chromosomes.
These chromosomes are composed of thousands of shorter DNA segments known as genes.
DNA is a linear molecule made up of four different types of smaller chemical molecules known as nitrogenous bases.
Thus, DNA is involved in coding protein and is usually located in nucleus.
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You are hiking in a forest and come upon a mysterious plant, which you determine is either a lycophyte sporophyte or a pterophyte sporophyte. Which of the following would be most helpful in determining the correct classification of the plant?
A) whether or not it has true leaves
B) whether it has microphylls or megaphylls
C) whether or not it has seeds
Answer: choice A
Explanation:
The main difference between pterophytes and lycophytes is the presence of true leaves(pteropytes) and lychophylls(lychophytes). Having lycophylls is a synapomorphy for the lychophytes.
Neither of these clades have seeds.
ASAP PLEASE HELPP
In a DNA strand with the sequence of C-G-G-T-A-G, the letters represent different...
A.) Monosaccharides
B.) Amino Acids
C.) Nitrogenous Bases
D.) Fatty Acids.
Answer:
C) nitrogenous bases
I think its C since the rest are types of molecules bigger than DNA
What does lung hyperinflation stimulate (write on both lines)
Answer:
What does lung hyperinflation stimulate? ... Dust, smoke, and noxious fumes will stimulate receptors in airways.
Explanation:
please mark me as brainliest i hope this helped you... : D
A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how
the cell could be classified?
Answer: The cell is eukaryotic because it has chloroplasts. A scientist is studying a cell and can clearly see that it has ribosomes and mitochondria.
Explanation:
Answer:
The cell is eukaryotic because it has chloroplasts. A scientist is studying a cell and can clearly see that it has ribosomes and mitochondria.
Explanation:
Just took the test 2020
Earth’s rain forests are the biomes with the greatest biodiversity because they have
A. Very little moisture
B. Primary disturbances
C. Cyclical Disturbances
D. Stable ecosystems
Answer:
c . cyclical disturbances
Stable ecosystem your welcome
A biology teacher takes fish, algae, pond weed, invertebrates, and bottom muck from a local pond and establishes them in an aquarium. When the system is stable, the teacher seals it into a large, airtight glass box and leaves the box in a sunny location. After 3 months, the organisms in the aquarium appear alive and healthy. Which of the following statements about the experiment is NOT correct? For EACH one of the choices indicate if it is a correct or incorrect statement and explain why (the explanation MUST include the information covered in class)
A) During the 3 months, the biomass of plant life was greater than the biomass of animal life.
B) No energy has entered or left the glass box during the 3 months,
C) Some atoms from water molecules have become parts of organic molecules,
D) The air in the glass box contains carbon dioxide.
E) Some of the energy in the system has moved from one organism to another during the 3 months
Answer:
E
Explanation:
Some are heterotrophic and the other are autotrophic.
Some of the energy in the system has moved from one organism to another during the 3 months. Hence option E is correct.
What is aquarium?Aquarium is defined as any size tank with at least one transparent side used to house and display aquatic plants and animals. Like zoos, aquariums offer enjoyable leisure and amusement activities that also serve as locations for scientific research, education, animal care, and conservation.
Your fish may die if there are any significant temperature variations in their tank. Do not place your tank close to cooling vents or in a location that gets a lot of sunlight. A steady water temperature of 72°F to 82°F is required for freshwater fish, while 75°F to 80°F is ideal for saltwater fish.
Thus, some of the energy in the system has moved from one organism to another during the 3 months. Hence option E is correct.
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Examples of stimulants include
a. Nicotine
b. Ecstasy
c. Dextromethorphan
d. A and B
Answer:
The answer to this question is d(A and B)
Explanation:
Hope this helps
Answer:
d but also c !
Explanation:
A and B are correct but also dextromethorphan has lower doses of stimulants
Complete each sentence by dragging the proper word or phrase into the appropriate position. Then place each sentence in order from the largest to the smallest cavity size being described
Drag the text blocks below into their correct order.
1. The________ are found deep in the diaphyses of long medullary cavities bones and are filled with yellow marrow in the adult.
2. Osteocytes maintain contact with neighboring osteocytes in adjacent lamellae via dendrite-like extensions through __________
3. Filled with matrix, , which are osteoblasts encased in perforating canals are found between layers of concentric lamellae nutrient foramen
4. Located in the middle of osteons, the contain the osteocytes blood vessels, and nervous supply of the compact bones. osteons
lacunae
central canals
canaliculi
Answer:
The medullary cavities are found deep in the diaphyses of long medullary cavities bones and are filled with yellow marrow in the adult.
Osteocytes maintain contact with neighboring osteocytes in adjacent lamellae via dendrite-like extensions through canaliculi.
Filled with osteocytes, which are osteoblasts encased in matrix, lacunae are found between layers of concentric lamellae.
Located in the middle of osteons, the central canal contain the blood vessels, and nervous supply of the compact bones
Explanation:
- The medullary cavities are central cavities in the bones. In adults, these cavities are filled with yellow marrow (adipose tissue).
- The canaliculi are small protoplasmic projections between the lacunae of ossified bones.
- The astrocytes are the most common type of bone cell.
- The lacunae are spaces where osteocytes are located in the mature bones
- The central canal provides nourishment to the osteocytes which collectively form the osteon.
Where in the body does a mutation have to occur in order to cause an inherited change in the offspring?
Answer
This has to be in germinal cells./germ-line cells.That is in the sex cells of either sperms or the eggs. it may occur during Gametogensis.
The fusions of these sex cells resulted in a new organism.Where the genes inherited in the two sex cells are fully expressed,It is duding the expression that the effect of the mutation will be shown.
Explanation:
SCENARIO ABiological anthropologists have discovered a previously unknown fossil species namedAustralopithecus sediba. The species lived about 2 million years ago in Africa and has an interesting mix of traits. For example, its arms are adapted for climbing in trees and its legs are adapted for walking on two legs on the ground. It does not directly resemble any of the living ape species, which suggests that the living ape species (including humans) have each become adapted for their own environmental contexts over time.What is the primary type of biological anthropology addressed in this research?A. Human biologyB. Forensic anthropologyC. PaleoanthropologyD. PrimatologyDoes the research also touch on topics that might be relevant to researchers in disciplines outside anthropology, such as biology, geology, psychology, medicine, sociology, or criminology? Which of the following disciplines would be most relevant?A. PsychologyB. BiologyC. CriminologyD. SociologyHow does this research relate to human evolution? In other words, what can we learn about human evolution from research along these lines?
Answer:
In scenario A A. Human biology
Which of the following disciplines would be most relevant?
B. Biology
Explanation:
In scenario A Australopithecus sediba arms are adapted for climbing in tree and its legs are adapted for walking on two legs. Australopithecus is related to homo habilis and also homo erectos. They are different human primate.
B. Biology because there are fossil remains dated to about 2 million years ago.
name two ways that veins and arteries are different
Answer: blood travels from the heart through arteries and blood travels to the heart through the veins.
I hope this helps
What do humans need in order to survive
Answer:
They need the basic and most important thing in life which is food shelter and clothing. Thanks. Hope it helps.
The best experimental design:______
a. alters only one condition between the controls and the experimental condition
b. includes a large sample size for each condition
c. includes a control
Answer:
The correct answer is option d. "includes a large sample size and a control, and alters only one condition between the controls and the experimental condition".
Explanation:
The correct answer for this question is missing, which is option d. "includes a large sample size and a control, and alters only one condition between the controls and the experimental condition". The best experimental design includes all the options proposed: it includes a large sample size to ensure that the data is statistically relevant; a control to verify that the results are valid and are not obtained from other untested conditions; and it alters only one condition at the time to ensure the existence of the relation between condition and results.
A female fly that has miniature wings and sepia eyes is crossed with a male that has normal wings and is homozygous for red eyes. The F1 are intercrossed to produce the F2. Give the phenotypes and their proportions expected in the F1 and F2 flies from this cross.
Answer and Explanation:
The gene that expresses the size of the wing is X-linked. The dominant allele expresses long wings, XM, while the recessive allele expresses miniature wings, Xm. The gene that expresses the color of the eyes is autosomal. The dominant allele expresses red color, S, and the recessive allele expresses sepia color, s.A female fly that has miniature wings and sepia eyes (XmXm ss) is crossed with a male that has normal wings and is homozygous for red eyes (XMY SS).
The F1 are intercrossed to produce the F2.
1º Cross:
Parental) XmXm ss x XMY SS
Gametes) Xms Xms Xms Xms
XMS XMS YS YS
Punnet Square) Xms Xms Xms Xms
XMS XMXmSs XMXmSs XMXmSs XMXmSs
XMS XMXmSs XMXmSs XMXmSs XMXmSs
YS XmY Ss XmY Ss XmY Ss XmY Ss
YS XmY Ss XmY Ss XmY Ss XmY Ss
F1) 1/2 or 50% of the progeny are females and the other 1/2 or 50% are males
100% of the females (1/2 or 50% of the progeny) are long-winged and red-eyed
100% of the males (1/2 or 50% of the progeny) are miniature.winged and red-eyed.
2º Cross:
Parental) XMXm Ss x XmY Ss
Gametes) XMS XMs XmS Xms
XmS Xms YS Ys
Punnet Square) XMS XMs XmS Xms
XmS XMXm SS XMXm Ss XmXm SS XmXm Ss
Xms XMXm Ss XMXm ss XmXm Ss XmXm ss
YS XMY SS XMY Ss XmY SS XmY Ss
Ys XMY Ss XMY ss XmY Ss XmY ss
F2) 8/16=4/8=1/2 or 50% of the progeny are females and the other 1/2 or 50% are males
Females (8/16):
3/8 of the females are long-winged and red-eyed, XMX- S-1/8 of the females are long-winged and sepia-eyed, XMX- ss3/8 of the females are miniature-winged and red-eyed, XmXm S-1/8 of the females are miniature-winged and sepia-eyed, XmXm ssMales (8/16):
3/8 of the males are long-winged and red-eyed, XMY S-1/8 of the males are long-winged and sepia-eyed, XMY ss3/8 of the males are miniature-winged and red-eyed, XmY S-1/8 of the males are miniature-winged and sepia-eyed, XmY ssNote: The symbol "-" means that in its place might be a recessive allele or a dominant allele. For example, S- means that it might be SS or Ss.
Diffusion is a passive process that accounts for the movement of respiratory gases across the capillary membranes of alveoli.
True
False
Answer:
True
Explanation:
Diffusion is a passive process (no energy required) in which the substance such as liquid and gases moves from an area of high concentration to an area of low concentration.
During respiration, carbon dioxide diffuses from the blood into the alveoli and oxygen diffuses from alveoli to blood across the respiratory membrane. The partial pressure of oxygen is low in the blood of the pulmonary capillaries and high in the alveoli. so diffusion allow movement of oxygen across the respiratory membrane from the alveoli into the blood.
Hence, the given statement is true.
1. What were the first living things on Earth?
Answer:
prokaryotes
Explanation:
Which macromolecule is made up of nucleic acids ?
A. Sucrose
B. RNA
C. Fatty Acids
D. Protein
Answer:
Ribonucleic acid (RNA)
Explanation:
DNA (deoxyribonucleic corrosive) is the most widely recognized type of hereditary material found in numerous living beings.
Nucleic acids connect the two strands of the DNA double helix together.
RNA (ribonucleic corrosive) is additionally found as genetic material (and not DNA) in certain creatures like infections.
Infections could have ssRNA (single-stranded RNA) or dsRNA (double-stranded RNA) as their hereditary material.
However, RNA is generally single-stranded, in contrast to DNA, which is double-stranded consistently.
Another type of RNA is messenger RNA (mRNA), ribosomal RNA (rRNA), transfer RNA (tRNA), etc
Which of followings are true?
a. Most people accept that the characteristics within a population--say pesticide resistance in lice--can change over time.
b. Some refer to the theory of evolution as "just a theory" with other competing and equally likely alternatives.
c. Some people want "special creation"--the idea that living things were created by a supernatural agent--to be considered as an alternative hypothesis alongside the theory of evolution in science education.
d. Science has rejected a hypothesis that different groups of organisms can show relationships without sharing one common ancestor.
e. Fossils are the direct evidence we have to test the theory of evolution.
f. The theory of evolution is accepted by scientists as the correct explanation for the origin of humans.
Answer:
A) True
John Marshall Clark a pesticide toxicologist recently discovered in one his studies at the University of Massachusetts that about 67% to 75% of lice are no longer affected adversly by insecticides.
B) True
An alternative to the theory of evolution is the Theistic Evolution.
C) True
Creationism or Special Creation is one of the ideas of evolutions which tries to offer a better explanation to the origin of the universe.
D) False
An example would be the winds of Bees, Bats and Birds. They all use wings (with similar structure) to fly however, their origins as explained by evolution are quite different taking into conginsance how they are formed at the embryo stage.
E) True
To understand evolution, we have to study and obtain as much as possible, all the information that a fossil can provide. Many times, these information provide substantial elements which support the theory.
F) False
Evolution is a theory which scientists have accepted as ONE of the several explanations of the origins of the human species. There are other competing theories.
Cheers!
How digestive enzyme affected when people having high fever? Explain.
Higher the body temperature, it would disrupt the shape of the active site of the enzyme , which will reduce its activity, or prevent it from working. The enzyme will have been denatured also the protein which can also lead to death.
Answer:
When a person has high fever, it's body temperature increases.
When the temperature is too high, enzyme molecules vibrate vigorously causing it to lost it's shapes and active sites.
Then, started to denatured and eventually, the enzyme died and no longer able to function.
The feces of birds and mammals can also be used to assess ecosystem health. Research this methodology and provide two examples of animals used for these studies and the types of materials that are identified in their feces
Answer:
Birds and leopard
Explanation:
It has been researched and discovered that the feces of birds and animals can be used to determine the state of health of an ecosystem.
For example, it has been discovered that hormones and other substances are excreted through urine and feces. And researchers have discovered from the feces of leopards, that a leopard that has cave or trees where it can hide from hunters are not likely to be stressed out like the one that does not have.
Polypeptides are chains of amino acids linked together in a specific order.
What type of bonds are formed between these amino acids?
Choose 1 answer:
Peptide bonds
Glycosidic linkages
Hydrogen bonds
Ester linkage
Answer: peptide bonds
Explanation:
A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water.
This is a dehydration synthesis reaction (also known as a condensation reaction), and usually occurs between amino acids.
Which of the following describes how damaged DNA can lead to a mutation?
A. The damaged DNA stops all protein synthesis by the cell.
B. An error occurs when the damaged DNA is repaired.
C. The segment of DNA that is damaged is transcribed into RNA.
D. The nucleotide sequence of the damaged DNA is restored
perfectly
Answer:
B.an error occurs when the damaged DNA is repairex
Explanation:
the best answer is B
The damaged DNA can lead to a mutation represent that option b. An error occurs when the damaged DNA is repaired.
Reason for damaged DNA?In the case when the DNA is damaged so it should be replicated that shows an incorrect base which should be inserted opposite the site of the damaged base in the strand i.e. complementary.
Due to this, it should become the mutation at the coming replication round.
Moreover, the double-strand DNA split might be repaired.
Hence, the option b is correct.
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~~9. Using the appropriate osmotic terms (hypertonic, hypotonic, or isotonic) describe what would happen to each organism in the following settings: on. A single-celled freshwater protist is placed into a beaker of salt water. (3 points) b. A salt-water snail is mistakenly put into a freshwater tank. (3 points) c. A head of lettuce is placed soaked in a sink of salt water. (3 points) d. A bunch of carrots are placed soaked a sink of distilled water. (3 points)
Answer:hh
Explanation:hhh
Based on the objective you should feel comfortable calculating expected genotype frequencies when given observed allele frequencies. You should also be able to compare expected genotype frequencies from HWE to observed frequencies and determine if evolution is occurring.Here's a sample problem. You can do this without a calculator!Let's take the noob gene, a gene with two known alleles that determines feather color in the eastern lark. The two alleles, let's call them delta and gamma, can be sequenced. In fact, looking at a population in southern GA, you discover that 60% of the alleles in the population are the delta allele.1. What is the percentage of the gamma allele in the population?2. Even more interesting, based on HWE what is the expected frequency of the population that is homozygous gamma? 3. Now, after surveying an isolated population of eastern larks, you find that 20% of the population is homozygous gama (gamma gamma), 65% heterozygous (gamma delta) and 10% homozygous delta (delta delta) and 5% of the population is a previously undescribed genotype - zeta zeta (homozygous zeta). What can you conclude about evolution in the population and why? If evolution is occurring, which mechanism(s) would be responsible?
Answer and Explanation:
60% of the alleles in the population are the delta allele
1. What is the percentage of the gamma allele in the population?
According to Hardy-Weinberg, the allelic frequencies in a locus are represented as p and q, referring to the allelic dominant or recessive forms. The genotypic frequencies after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation. The sum of these allelic frequencies equals 1, this is p + q = 1.
In the same way, the sum of genotypic frequencies equals 1, this is
p² + 2pq + q² = 1
Being
p the dominant allelic frequency, q the recessive allelic frequency, p²the homozygous dominant genotypic frequency q² the homozygous recessive genotypic frequency 2pq the heterozygous genotypic frequencyAccording to the sum of the allelic frequencies
p + q = 1
1 equals 100%
100% ------ 1
60%------0.6
40%------0.4
The percentage of gamma allele in the population is 40%.
2. what is the expected frequency of the population that is homozygous gamma?
The genotypic frequencies, F, after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive).
F(gamma)= p²= 0.4²=0.16 =16%
F(delta)= q²= 0.6²=0.36 = 36%
F (gamma-delta) = 2xp2q= 2 x 0.4 x 0.6 = 0.48 = 48%
3. 20% of the population is homozygous gama (gamma gamma), 65% heterozygous (gamma delta) and 10% homozygous delta (delta delta) and 5% of the population is a previously undescribed genotype - zeta zeta (homozygous zeta). What can you conclude about evolution in the population and why? If evolution is occurring, which mechanism(s) would be responsible?
20% gamma-gamma
10% delta-delta
65% gamma-delta
5% zeta-zeta
This population has different genotypic frequencies with respect to the population in southern GA:
The gamma genotypic frequency is a little bit higher in the isolated population (16% vs 20%)
The delta genotypic frequency is considerably lower in the isolated population (36% vs 10%)
The heterozygotic genotypic frequency is also higher in the isolated population (18% vs 64%)
It appeared a new phenotype in the isolated population, probably due to a mutation in one of the genes. We can assume that this is a new mutation because its frequency is still low (5%).
Maybe, the mutation occurred in an individual of the isolated population, and with time, this mutation increased its frequency, up to a point of being phenotypically visible. This could be a case of a bottleneck example.
The founder effect is a special case of genetic drift, where a few organisms of one population settles down in a new area carrying the genes of the original population.
Genetic drift is the random change in the allelic frequency in a population, from one generation to the other. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time, and eventually, some alleles get lost, while some other might get set.
Founder effect refers to the consequences that occur from the origin of a new population that derives from a small number of founder individuals that come from an ancestral bigger population. This small group shows poor genetic variation and a high possibility of expressing a peculiar allelic composition. Some mutation might occur and it can accumulate in time.
How many children and adolescents with histories of maltreatment involving sexual abuse or combined sexual and physical abuse meet criteria for post-traumatic stress disorder (PTSD)?
Answer:
Exposure to child physical abuse and parents’ domestic violence can subject youth to pervasive traumatic stress and lead to Post-traumatic Stress Disorder (PTSD). The often repeating and ongoing nature of family violence exposure may result in youth exhibiting problems in multiple domains of functioning and meeting criteria for multiple disorders in addition to PTSD. These characteristics as well as unique factors related to
Choose the correct definition and two examples of radiative energy.
radiative energy is energy in light. Sunlight carries this form of energy, as do other forms of light including X-rays and radio waves.
Which species is likely to exhibit random dispersion?
A.
rushes that grow on the edges of bodies of water
B.
orchid plants that grow on the branches of a particular tree species
C.
squirrels that actively defend their territory against other squirrels
D.
frogs that live along the edges of ponds and streams
E.
sweetgum, a tree species with wind-dispersed seeds
Answer:
E
Explanation:
E because....
The other options mention species that occupy niche environments and would therefore definitely not be randomly dispersed. Rushes and frogs would be found along the edges of water bodies, squirrels would be found within appropriate environments, which would be acorn tree forests and orchid plants also occupy a particular tree.
The correct option is E.
What is random dispersion?
In random dispersion, individuals are distributed randomly, without a predictable pattern. An example of random dispersion comes from dandelions and other plants that have wind-dispersed seeds.
Is random dispersion rare?In natural populations, random dispersion is rare, while clumped dispersion, which we'll focus on in this lesson, is the most common pattern. Clumped dispersion is often due to an uneven distribution of nutrients or other resources in the environment. It can also be caused by social interactions between individuals.
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It has been stated that the rainforests owe their existence at least in part to bats.
Is this a valid statement and why or why not? Defend your answer.
Answer: Valid Statement ✓
Explanation:
Bats have been known to contribute to the growth and restoration of Tropical Rainforests in 2 main ways. Seed Dispersal and Pollination.
Seed Dispersal.
Fruit Bats in the Tropical Rainforest are responsible for a lot of seed dispersal. Feeding at night to avoid predators, they eat fruits from various trees and then defecate these seeds after digestion. Fruit Bats like most other bats are very strong fliers and so cover a whole lot of distance at night meaning that they give the seeds a very wide coverage. Indeed it has been shown that because they defecate the seeds, the seed already has fertilizer to get nutrients from as it grows thereby increasing it's growth rate.
There are also trees and plants that have evolved to grow spiky or sticky fruit that attach themselves to the Bats which then deposit them elsewhere as they fly.
Pollination.
Fruit Bats have specialized long tongues to sip nectar from flowers. When they do this they pollinate the flowers. It has even been shown that some plants evolved to have brighter colours so as to attract these bats to enable pollination to happen. Indeed research shows that more than 125 genera of tropical plants rely on bats for pollination.
Bats plays an essential role in the existence of rainforests, they help to replenish and expand the area of rainforests.
The importance of bats:Bats plays an essential function in the existence of rainforests. Along with the birds they assist in some of the major activities like replenishing the devastated region and expanding the region of rainforests. It is known that the majority of the tropical plants are dependent upon the methods of seed dispersal for expansion of rainforests.
Apart from this, restoration of rainforests is also dependent upon the fruit-consuming animals like bats. Bats helps to disperse the shrub species to the gradually regenerating barren landscapes or grasslands or rainforests, which got devastated. It has been found that about 90 percent of the pollination and dispersal of seeds in rainforests is done with the help of species like bats.
The bats can assist in regenerating the deforested areas in short span of time in comparison to any modern strategies. Therefore, bats helps in afforestation of rainforests. Due to their aerial nature, they possesses the tendency to cover wide region and plays significant role in dispersal and pollination.
Thus, bats are essential for the existence of rainforests.
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Which statement is true of viruses? A. Viruses do not consist of cells, but they have cell membranes, cytoplasm, ribosomes, and other cell organelles. B. Viruses do not consist of cells; they lack cell membranes, but do have cytoplasm, ribosomes, and other cell organelles. C. Viruses do not consist of cells; they also lack cell membranes, cytoplasm, ribosomes, and other cell organelles. D. Viruses are cells with cell membranes, cytoplasm, ribosomes, and other cell organelles.
Answer:
C. Viruses do not consist of cells; they also lack cell membranes, cytoplasm, ribosomes, and other cell organelles.
Explanation:
Viruses are only composed of a couple things: strands of nucleic acid that can be DNA or RNA, a protein coat called a capsid, and potentially a glycolipid coat to protect the outside.
There are no organelles, nor are there cells. Keep in mind that a virus is nonliving, so D is utterly wrong.
select all that apply natural selection
1. is random
2. favors organisms well adapted to the environment
3.cannot work if beneficial traits are not hereditary
4. is often called survival of the fittest
Answer:
the answer is 2. favors organisms well adapted to the environment
