Answer:
1. C.) Their cell walls contain chitin
2. C.) Chloroplast
Answer:
More acidic and carbon dioxide
Explanation:
Cause I took the test
Biological processes that systematically vary over a 24-hour cycle are called circadian rhythms and are regulated by a cluster of neurons called the suprachiasmatic nucleus.
<h3>What is the circadian rhythm?</h3>
The circadian rhythm refers to the biological process regulated by the duration of a calendar day, which is common for many organisms ranging from animals to plants.
The circadian rhythms enable the maintenance of homeostatic control of physiological functions and thus perform metabolic activities.
In conclusion, biological processes that systematically vary over a 24-hour cycle are called circadian rhythms and are regulated by a cluster of neurons called the suprachiasmatic nucleus.
Learn more about the circadian rhythm here:
brainly.com/question/4095233
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Answer:
Because it is important to support the body to function properly
Answer: true
Explanation: in able to do this it has to transport proteins that can span the cell membrane and allowi the permeable membrane to regulate which molecules enter and leave a cell.
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(jacemorris04)
