Answer:
A.
Explanation:
Diffusion does not require energy. It's depends on the concentration gradient of the two molecules.
Diffusion is such an efficient process for all cells because it does not require energy. Thus, the correct option is A.
What is Diffusion?Diffusion may be defined as the migration of substances from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.
Diffusion does not require any type of energy for the movement of ions, molecules, or substances. It is a very feasible form of migration of substances.
Diffusion is a type of passive transport and hence takes place in a dropping manner without any expenditure of energy.
Therefore, Diffusion is such an efficient process for all cells because it does not require energy. Thus, the correct option is A.
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Which of the following statements about the ice ages is true? a. An ice age will never come again. b. The causes of ice ages are well known. c. During the ice ages, icy glaciers covered much of the continents. d. There were no living organisms during the ice ages.
Answer:
C
Explanation:
its a fact and in Biology we take facts over expectations
Humans should consider microbes as beneficial organisms for all of the following reasons except:
Group of answer choices
they purify water in the hydrosphere.
they consume carbon dioxide during photosynthesis.
they decompose organic waste in the geosphere.
they generate oxygen in the hydrosphere.
they filter ultraviolet radiation in the atmosphere.
Answer:
they purify water in the hydrosphere
Microbes are beneficial as well as detrimental to the environment. They do not purify water in the hydrosphere instead pollute them. Option (A) is correct.
How does microbes affect water quality ?The quantity and variety of native microorganisms in an aquatic environment have a significant impact on water quality .
Physical, biological, and chemical contaminants from human activity can build up in aquatic systems and have significant ecological effects that can be detrimental in nature.
Microbial activity in the aquifer may have an impact on a number of ground-water quality indices, including pH, oxidation/reduction (redox) status, dissolved oxygen, or the presence of certain mineral components. This is especially true if there are elements in the aquifer that bacteria may use to flourish.
Therefore, option (A) is correct option.
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Radiation is a measure of the average kinetic energy of the particles in an
object
True
False
Hiii!! I believe the answer is False. The temperature of an object is a measure of the average kinetic energy of the particles in an object. ((:
PLEEASEEEEEEEEE HEELPPPPPPPPPPPP
Answer:
1) bone marrow
2)stores fat
3) calcium
4)tough tissue
What is the pattern of energy transformation from light switch to light bulb?
a. Potential Energy, Thermal Energy, Light Energy
b. Kinetic Energy, Mechanical Energy, Potential Energy
c. Electrical Energy, Heat Energy, Light Energy
d. Mechanical Energy, Electrical Energy, Radiant Energy, Thermal Energy
Answer:
The correct answer is - option C. Electrical Energy, heat energy, light energy.
Explanation:
The transformation of energy from the light switch to the light bulb starts with the electrical energy to the heat or thermal energy and also generates the light energy which lights the bulb.
The amount of electrical energy is equal to the amount of light energy plus the heat energy generated by the bulb. It did not get mechanical or chemical energy.
Hi i need help with this, it shouldnt be too hard.
Describe the difference between gene mutations and chromosomal mutations, including:
- What are they?
- How do they occur, including their types?
- When will they result in a change in the phenotype of offspring?
Explanation:
Genetic alternations include chromosomal abnormalities and gene mutations. Chromosomal abnormalities generally arise during cell division. ... Gene mutations are permanent changes in DNA gene sequence. They can arise during normal DNA replication or in response to environmental factors.
Answer:
When a gene mutation occurs, the nucleotides are in the wrong order which means the coded instructions are wrong and faulty proteins are made or control switches are changed. The body can't function as it should. Mutations can be inherited from one or both parents. They are present in the egg and/ or sperm cells.
What type of mutation can affect offspring?
The only mutations that matter to large-scale evolution are those that can be passed on to offspring. These occur in reproductive cells like eggs and sperm and are called germ line mutations. No change occurs in phenotype. Some mutations don't have any noticeable effect on the phenotype of an organism.
How do mosses and ferns reproduce?
with spores
with seeds
with eggs
with sperm
I think the answer is -> SPORES <-
all life would come to an end if there are no green plants.
Explain
Answer:
So if there were no green plants, no food will be available for the other living organisms. ... During respiration, organisms use this oxygen for releasing energy. Without these 2 important aspects of food and oxygen, it would be difficult for life to survive on earth.
Explanation:
In this part you will be answering 2 different questions, Please use a full sentence.
Answer:
search the answer from Urban dictionary
Explanation:
lauren was walking in the woods when she found a rotting log. when she looked closely at the log, she saw that a decomposer was working to break down the wood. which could be the decomposer she saw on the log?
A. grass
B. mouse
C. mushroom
D. caterpillar
Answer:
C. mushroom
Explanation:
88 points please help will give brainiest
1. What are some patterns noticed about buffalo feeding? Any specifics about the season, food preference, habits, etc.
2. What are some patterns noticed about other organisms’ feeding patterns? Any specifics about the season, food preference, habits, etc.
3. Make notes of anything that could affect the buffalo’s ability to feed.
Answer:
1.
The population and the size of the African Buffalo increased from 1961 to 1975 by almost 50,000.
The population and the size of the African Buffalo decreased from 1976 to 1998 about 62,000.
At the year of 1999, the population and the size of the buffaloes begin to increase again.
From the years 1975 to 1985, they didn't collect any data
2.
Prey traveled in groups
There were adult animals watching their young
The groups seem like they're separated
3.
The feed will enter the rumen compartment when swallowed by the animal. ... The pH of the rumen content is similar to that of cattle, and it is affected in the same ... between protein and energy in the rumen to be able to do their qualified job.
QUESTION 2
At which stage of the cell cycle is the cell NOT dividing?
anaphase
metaphase
telophase
interphase
O prophase
OUESTION 2
Which of the following is a characteristic of the plasma membrane? It is made up of one layer of phospholipids. It doesn't contain any molecules aside from phospholipids. The outward-facing phospholipid tails give it a rough quality. It allows some molecules to pass through but prevents others from doing so.
Answer:
It allows some molecules to pass through but prevents others from doing so.
Explanation:
Which of the following does NOT influence population change?
a. immigration rate
b. birth rate
c. emigration rate
e. death (mortality) rate
f. interest rate
Please help me I don't understand
Answer:
D
Explanation:
All of the other options go against actual facts and the laws of biology
A variety of opium poppy (Papaver somniferum L.) having lacerated leaves was crossed with a variety that has normal leaves. All the F1 had lacerated leaves. Two F1 plants were interbred to produce the F2. Of the F2, 249 had lacerated leaves and 16 had normal leaves. Give genotypes for all the plants in the F1, and F2 generations. Explain how lacerate leaves are determined in the opium poppy. (Section 5.2)
Answer:
The correct answer is-
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
2. Two genes, with a dominant allele at either or both loci.
Explanation:
The given information gives THE following data:
Dominant: Lancerate leaves - AABB
Recessive: normal leaves - aabb
F1 has - all Lacerated leaves - AaBb
F2 by selfing F1:
AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb Aabb aaBb aabb
Here, 15/16 = lacerate which is 0.94 which is equal to the value of lacerate given in the question - 249/265 = 0.94
And normal 1/16 = 0.062 is almost same as 16/265 = 0.060
Thus, the genotypes of -
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?
1.It It benefits organisms that are immobile
2.immobile.It gives offspring the genetic traits to survive in a particular environment
3. It uses less energy.
4. energy.All of of the above above
Answer:
3
Explanation:
because you don't have to ...you know
Answer:
It is 4 all of the above.
Explanation:
Yes because I got it right on test.
An estuary that normally shelters juvenile fish and other organisms has become filled with silt and pollution. How will this affect the age distribution of the populations?
In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species ch the Atlantic sid. See different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the stimus about 3 million years ago. If the geological evidence has been misinterpreted and the isthmus had formed very rapidly in less than 1,000 years), which of the following predictions is most likely?
A. greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabt stalow water
B. greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
C. similar percentages of difference in DNA sequences between all pairs of sister species
D. greater percentage of difference in DNA sequences between Atlantic species than between Pacific species
Answer:
The answer is "Choice A".
Explanation:
The Panama isthmus is indeed a patch of land which separates its sea from its Atlantic ocean to The pacific in two halves. The Panama Isthmus allows spreading the seafood applicable state, although due to geographical barrier, the very same turtle species were isolated. Its deep squirrels of liquid are diverged quite early as being against shallow water shrimps which are characterized by the rising of the Jamaica isthmus, first off the island can be crossed until it was closed through shallow water prawns and shallow-water animals. If Panama's black sea was established less than 1000 years, it has a greater effect on deepwater shrimp and very low water lobsters. Consequently, in water depth prawns, a disparity in hereditary degree (DNA) is higher than in shallow species. The deep waters have been affected earlier so the variation in DNA sequences throughout all sister species will not be the same.
You are trying to find which wavelength of light would allow algae to do photosynthesis the worst (you want to prevent algal growth in your pond). Describe your experiment setup:
hypothesis (1 point)
independent variable (1 point - you can choose anything)
dependent variable (1 point) and how you will measure the dependent variable (1 point)
variables you will keep constant (1 point)
Answer:
The light reactions of many algae differ from those of land plants because some of them use different pigments to harvest light. Chlorophylls absorb primarily blue and red light, whereas carotenoids absorb primarily blue and green light, and phycobiliproteins absorb primarily blue or red light. Since the amount of light absorbed depends upon the pigment composition and concentration found in the alga, some algae absorb more light at a given wavelength, and therefore, potentially, those algae can convert more light energy of that wavelength to chemical energy via photosynthesis. All algae use chlorophyll a to collect photosynthetically active light. Green algae and euglenophytes also use chlorophyll b. In addition to chlorophyll a, the remaining algae also use various combinations of other chlorophylls, chlorophyllides, carotenoids, and phycobiliproteins to collect additional light from wavelengths of the spectrum not absorbed by chlorophyll a or b. The chromophyte algae, dinoflagellates, cryptomonads (class Cryptophyceae), and the class Micromonadophyceae, for example, also use chlorophyllides. (Chlorophyllides, often incorrectly called chlorophylls, differ from true chlorophylls in that they lack the long, fat-soluble phytol tail that is characteristic of chlorophylls.) Some green algae use carotenoids for harvesting photosynthetically active light, but the Dinophyceae and chromophyte algae almost always use carotenoids. Phycobiliproteins, which appear either blue (phycocyanins) or red (phycoerythrins), are found in red algae and cryptomonads.
Explanation:
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Darla is a crime scene Investigator searching for latent bloodstains. She uses a chemical process that makes blood more visible, or darker, to the naked eye. Which chemical Is she using? Α) Luminol B) Fluoresceln C) Leuco Crystal Violet D) Ascetic acid
Answer:
C
Explanation:
Leuco Crystal Violet.
Through what process can scientists artificially change the DNA code of organisms?
A)DNA fingerprinting
B)Polymerase Chain Reaction
C)Cloning
D)Recombinant DNA
Answer:
cloning is the right answer
Through Recombinant DNA scientists can artificially change the DNA code of organisms.
What is recombinant DNA?Recombinant DNA is a term used to describe the process of creating new combinations of DNA from different sources. This is done by cutting DNA molecules from different sources and joining them together, creating a recombinant molecule.
This process is often used in biotechnology for applications such as creating new vaccines, improving crop yields, and producing therapeutic proteins. Recombinant DNA technology plays a crucial role in many areas of modern biology and medicine, including genetic engineering, gene therapy, and drug discovery.
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The green machines within a plant are the blank.
Lysosomes chloroplasts mitochondria
A decomposer is an organism that gets its energy from ____________.
Group of answer choices
the food it produces during photosynthesis
the prey it hunts and kills
from other living organisms
dead plant and animals
A researcher in 2024 studies the evolutionary relationships between influenza viruses by comparing the genomic sequences of the viruses found in pigs, ducks, and humans in a given year. When evaluating the viruses that had infected these hosts the previous year, she identifies a cross-species transfer from pigs to ducks in the year 2022. What information supports the hypothesis that cross-species transfer leads to more severe disease in the new host
Answer:
pigs suffered severe influenza in the year 2022
Explanation:
Influenza, commonly known as flu, is a viral infectious disease caused by different types of influenza viruses. Some of the most common symptoms of this disease include, among others, headache, coughing, fever, muscle pain, etc. Influenza viruses can affect humans and different animals such as, for example, cats, dogs, birds and horses. There is evidence showing cross-species influenza virus transmission. For example, it has been shown that the influenza type A virus can be transmitted from one species to another (for example, between humans and pigs). In these cases, cross-species transmission information may indicate how much potential a virus has to cause a pandemic in the new host by analyzing the severity and infectivity of the virus in the original host.
Which of these is a density-independent factor?
A. Forest fire
B. Food source
C. Shelter
D. Water supply
Out of the options given, the density-independent factor is: A. Forest fire. A density-independent factor is a factor that affects a population regardless of its size and density.
What is cell?A cell is the basic unit of life that makes up all living things, including animals, plants, fungi, and bacteria. It is the smallest structural and functional unit of an organism that is capable of performing all the functions of life, including metabolism, growth, reproduction, and responding to stimuli. A typical cell is composed of a cell membrane, cytoplasm, and a nucleus (in eukaryotic cells), or a nucleoid region (in prokaryotic cells). The cell membrane is a selectively permeable membrane that surrounds the cell and separates it from the environment, regulating the exchange of materials between the cell and its surroundings. The cytoplasm is a gel-like substance that fills the cell and contains all the organelles and structures necessary for the cell's functions. The nucleus contains the cell's genetic material, including DNA, which controls the cell's activities and is responsible for inheritance.
Here,
A forest fire can have a significant impact on a population, regardless of its size or density. Forest fires can destroy habitats, reduce food sources, and alter the physical environment, which can have a significant impact on the population. A forest fire does not depend on the size or density of a population, so it is considered a density-independent factor.
The other options, such as food source, shelter, and water supply, are density-dependent factors that can impact a population based on its size and density. As the population increases, the availability of these resources can become limited, which can affect the population's growth and survival.
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hi guys so i have two pet frogs and yesterday my sister wanted to be a co owner of them she does nothing for them just takes pictures what should i tell her and she also wants to change their names to a name i dont like its my frog not hers and she wants it to be hers to and change the name what should i do
Answer:
You should tell her that it is you frog, and Since you have two let her name one of the frogs that way she does not get upset or mad or take turns with a frog like she gets a week and then you get it
trust me I am the oldest out of 4 kids so
Explanation
Hope this helps you
Molecular anthropology ___________________ Question 1 options: uses genetic analysis of a DNA sequence to assess evolutionary links. is the specialty of the most important member of an archaeological excavation project. studies early hominins through fossil remains. uses microscopic phytolithic analysis to study molecular evolution. uses archaeological survey techniques to gather its data.
Answer:
The correct answer is ''uses genetic analysis of a DNA sequence to assess evolutionary links.''
Explanation:
Molecular anthropology is a relatively recent branch, it refers to the study of biological phenomena (genetic study) at molecular levels, that is, biochemical, it allows us to understand and expand our knowledge about the evolution of the species and the complex phenomena of microevolution . It is closely related to other fields of anthropological study, among which we can mention primatology and genetics.Through molecular anthropology we are more aware of kinship, therefore, we can know human evolution over the centuries .
In peas, round shape is dominant (R) over wrinkled (r) and yellow color is dominant (Y) over green (y). If both parent plants are heterozygous for both traits,
what is the probability of an offspring's phenotype being round and yellow?
HELP I NEED A NUMBER OUT OF 16
Answer:
9/16
Explanation:
RrYy x 2
Answer:
9 out of 16 (also 9/16)
Explanation:
Count the likeliness of the offspring to be round:
RR, Rr, rR, rr
round shape is 3 out of 4 times
Count the likeliness of the offspring to be yellow:
YY, Yy, yY, yy
yellow color is 3 out of 4 times
Multiply the likeliness of being round and being yellow (since they are two independent probabilities, we are using multiplication rule):
3/4 * 3/4 = 9/16
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How humans use Nitrogen and phosphorus to make more food?
A. Dog foods
B. Fuels
C. Fertilizers
D. Cars
Answer:
C. Fertilizers
Explanation:
