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just olya [345]
3 years ago
11

Some bacteria have a —————- a tail like structure on a cell that allows the cell to move

Biology
1 answer:
MArishka [77]3 years ago
3 0
Bacteria move using a tail like structure called flagellum .
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Why the plants in a space are grown in enclosed containers
Leona [35]
Hey In addition to providing fresh food, growing vegetables in space has other benefits, both atmospheric and psychological. Plants remove harmful carbon dioxide from the air and replace it with needed oxygen.
5 0
3 years ago
in an experiment, you mutate the retinoblastoma gene such that its gene product behaves as if hyperphosphorylated. the result wo
lakkis [162]

Answer:

1. Weaker

2. Continuous

Explanation:

A tumor suppressor gene codes for retinoblastoma protein (pRb). The retinoblastoma protein binds to transcription factor E2F when DNA damage is detected. The E2F bound to pRb can not stimulate expression of genes that code for proteins required during the process of DNA synthesis. The cell can not enter the S phase.

On the other hand, when the retinoblastoma protein is phosphorylated by cyclin E-CDK2, E2F transcription factor is free to stimulate the expression of genes required for DNA synthesis and the cell proceeds from G1 to S phase.  

When the mutated retinoblastoma gene code for a protein that serves as phosphorylated protein, it will not be able to bind strongly with E2F and there would be continuous expression of genes required for S phase.  

3 0
3 years ago
The different colors revealed as while light passes through a prism represent
Ksenya-84 [330]

Answer:

The different colors that pass through a prism represent the colors of the rainbow

Explanation:

See for your self .

6 0
3 years ago
Why would a patient with a pheochromocytoma sweat excessively, have facial pallor, and bc constipated?
liubo4ka [24]

During the sympathetic reaction the blood flow is augmented to the skeletal muscles and brain. Then the blood flow will diminished to the bowel which may led to constipation. The person will perspire excessively and may lead to dehydration which eventually may constrain bowel function.

6 0
3 years ago
Scientists studied reproduction in the New Zealand mud snail. They wanted to determine whether reproducing sexually or asexually
lubasha [3.4K]

A hypothesis is a claim that expresses a relationship between variables. D) Asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social interaction.

<h3>What is a hypothesis?</h3>

A hypothesis is a scientific conjecture, not verified, that requires corroboration. It is a possibility, but not a fact. It is a claim of how it works a relationship between two or more variables.

The researcher hypothesizes in order to predict what is going on or what is expected to occur.

A hypothesis must express what is expected to occur in a perfectly comprehensive manner. There must be a logical relationship between the involved variables. It must be objective. Usually, it is written in the present time.

There are different kinds of hypotheses: descriptive, correlative, differentiative, or causative.  

In the exposed example, researchers wanted to determine whether reproducing sexually or asexually was more beneficial for the snails.

Options,

A) <em>Sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation. </em>

The benefit of reproducing sexually is that the risk of mutation is lower.

B) <em>Asexual reproduction is advantageous over sexual reproduction because it allows the snails to produce more offspring.</em>

<em />

The benefit of reproducing asexually is that a higher number of descendants are produced, which increases reproductive success.

C) Sexual reproduction is advantageous over asexual reproduction because it allows for snails to have increased genetic variation.

The benefit of reproducing sexually is that it increases genetic variation.

D) Asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social interaction.

The benefit of reproducing asexually is that there is no need for social interaction.

Social interaction does not really benefit snails as a species. This is not a variable that might influence in a significant way snails.

However, variables like the mutation rate, variability, and the number of descendants are useful to test how they benefit or not the snails.  

The hypotheses that would least likely aid the scientists to answer the question is <u>option D</u>.

You can learn more about hypothesis at

brainly.com/question/2657326

brainly.com/question/24897727

#SPJ1  

3 0
2 years ago
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