Which of the following is not a prokaryote?
1.archaebacteria
2.fungi
3.eubacteria
4.halophiles
Restriction endonucleases cleave at __________ , which are sequences that read the same, 5 to 3 , on each DNA strand.
Answer:
Restriction endonucleases cleave at DNA (Deoxy ribonucleic acid) which are sequences that read the same, 5 to 3 , on each DNA strand.
Explanation:
RESTRICTION ENDONUCLEASES-: An enzyme that cleaves DNA into fragments at or near unique recognition sites within molecules known as restriction sites is a restriction enzyme, constraint endonuclease, or restrictase. One class of the larger endonuclease group of enzymes is restriction enzymes. Restriction enzymes are typically divided into five groups, which vary in structure and whether their DNA substrate is cut at their location of recognition or whether the locations of recognition and cleavage are different from one another. Both restriction enzymes make two incisions in order to cut DNA, once through each sugar-phosphate backbone (i.e. each strand) of the double helix DNA.
In bacteria and archaea, these enzymes are contained and provide a defence mechanism against invading viruses. Within a prokaryote, in a process called restriction digestion, the restriction enzymes selectively cut up foreign DNA; meanwhile, host DNA is protected by a modification enzyme (a methyltransferase) that modifies the prokaryotic DNA and blocks cleavage. Together, these two procedures form the method of restriction alteration.
Do the same mechanisms that govern gene expression operate in bacterial cells and eukaryotic cells? Explain your answer.
Answer:
in prokaryotic cells, the control of gene expression is mostly at the transcriptional level. ... Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.
What is a piscivore?
O An animal that eats fish
O An animal that eats plants
O Any fish species
O Any plant species
Question 1
The heat from a lamp allows a lizard to remain warm. This is an
example of which type of heat transfer?
Cold Blood
Conduction
Radiation
Convection
Answer:
Answer is radiation
Explanation:
Took the test!
Structure of a Water molecule
Answer:
A water molecule consists of two hydrogen atoms and one oxygen atom. ... This molecular structure leads to hydrogen bonding, which is a stabilized structure in which a hydrogen atom is in a line between the oxygen atom on its own molecule and the oxygen on another molecule.
Explanation:
If the sequence of an mRNA moving through the ribosome has the sequence 5'AUGCCAGCGGAUCGC3', what is the sequence of the polypeptide produced from translating this segment
Answer:
MPADR (methionine-proline-alanine-aspartic acid-arginine)
Explanation:
Translation is the mechanism for which a protein is synthesized from the information encoded in the messenger RNA (mRNA). The mRNA is a single-stranded molecule that consists of a chain of nucleotides, where three-letter combinations of nucleotides 'or codons' specify the order of the corresponding amino acids in the polypeptide chain. The ribosome reads the mRNA by one codon at a time and thus translates this information into a polypeptide, where each codon is specific for one amino acid. In this code, the start codon is AUG (which is read as Methionine), while stop codons can be UAG, UAA, and UGA.
the boundary where two plates collide is the divergent boundary
True
False
Answer:
False
Explanation:
A divergent boundary happens when two tectonic plates move away from each other. When two plates collide, it is known as a convergent boundary.
I think the answer is false
find the value of x and y if (x,5)=(3,y)
Answer:
x = 3
y = 5
Explanation:
You associate the placement of the variables with their values.
Countries like Guatemala and
are learning responsible and sustainable farming practices to help their agricultural business flourish.
south africa
rwanda
france
Answer:
The answer is Rwanda
Explanation:I took the unit test.
Can a fossil be created in a few weeks? How long do you think it
takes a dinosaur fossil to form?
Answer:
Fossils are defined as the remains or traces of organisms that died more than 10,000 years ago, therefore, by definition the minimum time it takes to make a fossil is 10,000 years. But, that is just an arbitrary line in the sand – it means very little in terms of the fossilisation process.
Explanation:
Fossils are a record of organisms that lived in the past. are two main categories of fossils: body fossils and ichnofossils. Body fossils are the result of preservation of parts or the entire body of a plant, animal, or microorganism. These are the fossils that people are most familiar with, consisting of skeletons, teeth, shells, carapaces, organisms in amber, petrified wood, plant material, pollen, etc. Ichnofossils (also called trace fossils) are evidence of an organism’s activity. Common ichnofossils are animal footprints and trackways, burrows, traces of plant roots, coprolites (fossil feces), and borings in rocks, bones, wood, shells, or other substrates. The study of fossils provides information about ancient biological communities, and the physiology, behavior, and ecology of organisms.
In conclusion, fossilization at least at the present time, is thought to be a very unlikely process and it is believed that only a very small fraction of organisms that lived in the past became fossils. The majority of these fossils were hard skeletal parts or wood. To become fossilized, organisms must be rapidly buried, preferably in a fine sediment with geochemical conditions that favor the exchange of minerals between the sediment and organic components of the organism, and that exchange of minerals is possible because of dissolved minerals in flowing water. If those conditions occur, fossilization must necessarily be a rapid process of a few hours to a few months if it is to occur before decay destroys any record of the organism. Fossilization does not take thousands or millions of years, but is most likely to occur in catastrophic conditions such as would have existed during the Genesis Flood.
Help me plzzz thanks I’ll mark brainliest
Answer:
b
Explanation:
abiotic factors
Answer:
B
Explanation:
How do changes in population size relate to environmental conditions?
Answer:
Population size certainly relates to environmental conditions, as more people in a city equate to a higher amount of cars—thus increasing emissions. Additionally, there could be more factory runoff–polluting nearby rivers and waterways.
Population and resource utilization per person determine ecosystem vulnerability. Population expansion increases resource demand, waste, and environmental deterioration.
What are the effects of increase in population on the environment?The hazard to the ecosystem is proportional to human population number and resource consumption per person. Population increase accelerates resource use, waste generation, and environmental degrading.
Through overexploitation, intensive farming, and land fragmentation, it lowers the quality and quantity of natural resources. In regions with significant population pressure, arable land is scarce, resulting in a shortened/eliminated fallow time, a decline in soil fertility, and a decline in farm income owing to farm subdivision.
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I’ll mark as BRANLIEST!!
Plz I need this for my test!!
1) Observation: a teenager observed that he had three new pimples the night after eating a chocolate bar.
Question:
Hypothesis:
2) Observation: A mother observed that the plant that she accidentally spilled salt water on was wilted.
Question:
Hypothesis:
3) Observation: A little boy observed the leaves on trees changed colors when the temperature was lower.
Question:
Hypothesis:
Answer:
See the answer below
Explanation:
In science, research questions are generally derived from the observation of phenomena. Also, hypotheses that represent general statements that have not been tested are formulated in such a way that they can be falsified. Hence, for each of the observations in the illustration, the question and their respective hypothesis would be as follows:
1. Observation: a teenager observed that he had three new pimples the night after eating a chocolate bar.
Question: Do chocolate bars cause pimples in teenagers?
Hypothesis: If teenagers eat chocolate bars, they might get pimples.
2. See the attached image
3. Observation: A little boy observed the leaves on trees changed colors when the temperature was lower.
Question: Do lower temperatures cause tree leaves to change color?
Hypothesis: If the ambient temperatures of trees are lowered, their leaves might change color.
SOMEONE PLEASE HELP MEEEE you don’t have to explain just tell me if it’s true or false
Answer:
7. True
8. False
9. True
10. True
Explanation:
An _____
is a head and throat specialist.
Answer:
Otolaryngologists
Explanation:
Which is the name of the group of spermatophytes that are cone-bearing plants?
A. Lycophytes
B. Bryophytes
C. Gymnosperms
D.angiosperms
Answer:
Gymnosperms
Explanation:
Gymnosperms produce both male and female cones, each making the gametes needed for fertilization; this makes them heterosporous. Megaspores made in cones develop into the female gametophytes inside the ovules of gymnosperms, while pollen grains develop from cones that produce microspores.
Gymnosperms are name of the group of spermatophytes that are cone-bearing plants. The correct option is C.
What are gymnosperms?In contrast to angiosperms, or flowering plants, whose seeds are encapsulated by mature ovaries or fruits, a gymnosperm is any vascular plant that propagates through a bare seed, or ovule.
Many gymnosperm seeds are borne in cones and are not visible until the plant matures.
Gymnosperms are a small class of plants that rarely flower and produce "bare seeds." This means that the seeds are produced on the reproductive structure's surface rather than within it, as in a fruit.
Gymnosperms are a spermatophyte plant group that includes cone-bearing plants.
Thus, the correct option is C.
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According to some critics of evolution, natural selection can produce changes in a population, but it cannot cause substantial changes leading to?
Answer:
It cannot cause substantial changes leading to the formation of a new species.
Explanation:
So natural selection would improve a population but creating a different one will not happen.
*WILL GIVE BRAINLIEST TO THE BEST ANSWER*
Match each organelle with the correct function.
Answer:
1
6
2
4
3
5
Explanation:
rough endoplasmic reticulum is responsible for protein synthesisnucleus controls cellular activities.lysosome stores calcium ionsmitochondria creates energy through respiration.The smooth endoplasmic reticulum creates lysosomes.Golgi body breaks down cellular food and waste.Answer:
(1-golgi body),(6- nucleus),(4-mitiochondria),(5-lysosome),(2-smooth endoplasmic),and (3- rough endoplasmic).
Explanation:
I know this because I learned this in my fifth period at los banos tigers.
hope this helps
What are the difference illnesses that a human body would acquire if the person did not quit smocking? Give at least 4 examples. Organize and categorize which illnes
Answer:
hi
Explahination:
What is the process that occurs when a recipient eukaryote cell accepts DNA gragmets indirectly from the surrounding environment?
Answer:
horizontal gene transfer
Explanation:
Horizontal Gene Transfer (HGT) can be defined as a non-sexual process that enables the exchange of genetic information between genomes. Although HGT mainly occurs between prokaryotic genomes, an increasing number of examples involving eukaryotic host genomes have recently been described. Agrobacterium bacteria are capable of transferring and integrating DNA into the genome of eukaryotic cell hosts by the HGT mechanism. The transference of genetic material via Agrobacterium-mediated transformation is widely used in biotechnology to generate plants with desired genetic sequences. In the last years, it has been shown that various bacterial species including Bartonella henselae Rhizobium etli or even Escherichia coli, are able to genetically transform eukaryotic cells under laboratory growth conditions. The genetic phenomenon of horizontal gene transfer has evolutionary significance since it enables to bypass barriers between kingdoms in order to acquire nucleotide sequences that may eventually have some adaptive advantage. Moreover, the mechanism of horizontal transfer challenges a narrow vision of the eukaryotic genome as a fixed entity.
Which is the largest prefix? Meter- Centi- Milli- Kilo-
Answer:
kilo is the largest
Explanation:
kilo- is the largest
How many net ATPs are made in glycolysis?
Select one:
O a. 1
O b. 2.
O c. 6
O d. 34
O e. 38
Answer:
O c. 6
Explanation:
How might infanticide be seen as a reproductive strategy for males? What would you say if you saw a newspaper article that applied this concept (not the act itself) to human males? Do you think some people would object? Why or why not?
Answer:
A) Infanticide can be seen as a reproductive strategy for males because according to a study on Hanuman Langurs by Hirdy in India in 1977. males can be able to increase their reproductive capability by killing Infants fathered by other males
B) If a newspaper article that applied this concept is put out there i would criticism it constructively because such article can cause mayhem between males ( humans ) and we are higher beings and as such shouldn't be compared with lower animals
C) People will wholeheartedly object such article and
D) this is because the article those not address critical issues like : Why should a male specie kill another infant and not his own. and if the the males keeping killing the infants wont the species go extinct?
Explanation:
A) Infanticide can be seen as a reproductive strategy for males because according to a study on Hanuman Langurs by Hirdy in India in 1977. males can be able to increase their reproductive capability by killing Infants fathered by other males
B) If a newspaper article that applied this concept is put out there i would criticism it constructively because such article can cause mayhem between males ( humans ) and we are higher beings and as such shouldn't be compared with lower animals
C) People will wholeheartedly object such article and this is because the article those not address critical issues like : Why should a male specie kill another infant and not his own. and if the the males keeping killing the infants wont the species go extinct?
identify and describe one natural and one man made source of carbon in the carbon cycle?
What is the importance of having bacteria that is helpful that is helpful?
A. All bacteria makes humans and animals sick.
B. The bacteria that causes strep throat helps with immunity.
C. The bacteria in human’s intestines help digest food and cows with digesting plants.
D. Bacteria can create pathogens to make us healthy.
Answer:
the correct answer is D
Observations:
In this photo I can
observe...
(delete this and start
typing here. See below
for ideas about what to
write about)
Answer:
In this photo, one can observe the big mountains, the clear blue sky, the sand which covers the ground, the path down the middle and the variety of dry, green plants.
Explanation:
^
Which food contain a lot of processed simple sugars?
Answer:
A cookie contains a lot of processed simple sugars.
Explanation:
Answer: A cookie contains a lot of processed simple sugars.
Four gases are described below:
Gas A: 3 liters at 42 °C
Gas B: 9 liters at 12 °C
Gas C: 9 liters at 42 °C
Gas D: 9 liters at 12 °C
Which gases have the same average molecular kinetic energy?
Gas A and Gas B
Gas A and Gas C
Gas B and Gas C
Gas B and Gas D
Gases A, B, and D all have the same average molecular kinetic energy, since they are at 12°C.
Explanation:
HELP PLS ASAP I MIGHT FAIL
Answer:
a and b
Explanation:
because I have took the test before
