BIOLOGY COLLEGE

Which types of heat transfer involve heat flow from hot objects to colder objects?

Answers

Answer 1
Answer:

convection, conduction and radiation is the correct answer because heat flows from hot to cold. The heat flows from hot objects to cold objects whether the heat transfer is occurring by convection, conduction, or radiation.   Heat flows from warmer substances to cooler substances until they reach the same temperature.

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Where does the RNA cap go? The tail?

Answers

Answer:

The post-transcriptional modifications in the mRNA produced as a result of the transcription in eukaryotes provide many advantages to the mRNA.

The two post-transcriptional modifications are the addition of  7-methylguanosine cap at 5' end of mRNA called capping whereas the addition of the poly(Adenyl) tail at 3' end called tailing.

The advantages of capping are:

1. Protection of nascent mRNA from the degradation.

2. Recognition by transcription factors helps in translation.

The advantages of tailing are:

1. Protection of the mRNA from enzymatic degradation in the cytosol.

2. Transcription termination

3. Export of the mRNA from the nucleus  

what process occurs when a single flower self-pollinates by a male cell and female cell coming together to form a seed?

Answers

it is
sexual reproduction
it becomes more and more reproduction and that when the male cell matches up with the female cell and then it becomes another egg

How does blood travel from your heart to your limbs, such as your arms and legs?

Answers

Answer:

Blood always moves through the body by the heart’s pumping action. The muscles in the legs assist blood flow by their action. Aiding these actions, the veins have valves in them that prevent the blood from flowing backward.

Explanation:

Answer:

Blood moves throughout the body because the heart pumps blood

Keeping in mind the life cycle of bacteriophages, consider the following problem: During the reproductive cycle of a temperate bacteriophage, the viral DNA inserts into the bacterial chromosome where the resultant prophage behaves much like a Trojan horse. It can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. Several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. Insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. As stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

Answers

Romans and the Trojan war

Which hypothesis regarding the evolution of hominin bipedalism suggests that this energy-efficient trait arose so that hominins could search for food that was dispersed after climatic changes at the end of the Miocene?

Answers

Answer:

Patchy forest.

Explanation:

The patchy forest hypothesis is the second hypothesis that helps to explain the origin of the hominids. The hypothesis was developed by  Peter Rodman and Henry McHenry.

This hypothesis suggest that the evolution of bipedalism is energy efficient in the environment that contain few tress. The patchy forest result in the dispersion of the forest and this might result in the energy efficiency of bipedalism by walking upright and collect their food with hands.

Thus, the correct answer is patchy forest.

Which products do not have scientific studies supporting their claims to be beneficial when used?A. Cofactors and coenzymes to support enzyme function
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function

Answers

The answer is A I think
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In many polygynous songbird species, such as wrens or red winged blackbirds, a single male holds a territory and mates with several females on that territory. In monogamous species, such as cardinals and blue jays, mated pairs typically hold a territory and males mate with only one female. In comparably sized populations, do you expect drift to have a stronger effect in polygynous species or monogamous species? Explain your choice.
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A population of snakes has 900 individuals. They have a death rate of 30 per year and a birth rate of 20 per year. Assuming 6 snakes migrate into the population and 3 migrate out of the population per year, how many individuals would there be after the first year? (To answer, write numerals in the box below.)