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alexdok [17]
3 years ago
13

How did the distribution of phenotypes change over time in the two different environments?

Biology
1 answer:
Margarita [4]3 years ago
5 0

Answer:

The phenotype may change constantly throughout the life of an individual because of environmental changes and the physiological and morphological changes associated with aging. Three types of natural selection, showing the effects of each on the distribution of phenotypes within a population.

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If a cell loses control of gene expression, what happens?
kipiarov [429]

Answer:

Abnormal, unhealthy cells develop

Explanation:

Gene expression is the process through which genes are turned on through transcription, and to some extent through the translation of the mRNA.

Gene expression is highly regulated to ensure the cell can create the correct combination of proteins to carry out it's tasks. If gene expression is out of control, the mRNAs that are transcribed in the cell are not properly regulated, and therefore the proteins in the cell are not regulated. Since proteins carry out essentially every function in the cell, the cell becomes unhealthy, and incorrectly uses its resources.

Accurate control of gene expression also ensures that the cell can perform specialized functions, it is what makes a heart cell distinct from a brain cell, for example. Therefore, if it is out of control, cells will not be specialized correctly.

3 0
3 years ago
Which two (2) statements are correct examples of the “structure determines function” relationship among specialized cells in an
Nady [450]

Answer:

A and E are the correct.

Explanation:

Examples of the structures that determine function:

a) <u>Chloroplasts </u>only found in plant cells. They work to fix the CO2 in the presence of <u>light energy</u> (sunlight) and convert the reactants into <u>sugar molecules (carbohydrates</u>) that can be used by cells for metabolic functioning.

e) <u>Sperm</u> is the male reproductive cell. Motile sperm cells have a tail-like structure that typically <u>move via flagella</u> and requires a water medium in order to swim toward the egg <u>for fertilization</u>.

Other options are not correct because <u>they don't explain their function according to their structure</u>.

6 0
3 years ago
What process is this?
IrinaK [193]

This is the Krebs Cycle. It is a lot like a wheel. The Krebs Cycle gives off FADH^2, NADH, and a bit of ATP.

3 0
3 years ago
Read 2 more answers
Why are frozen pipes a problem in very cold countries?? ​
Arada [10]
When it gets cold, the accumulated water inside the pipes freezes, expands and creates extreme pressure.
5 0
3 years ago
Body composition is best described as __________.
goblinko [34]
A. the amount of lean muscle in a body
7 0
4 years ago
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