<u>Answer</u>:
Metabolic regulation D: Is the maintenance of homeostasis at a molecular level
<u>Explanation</u>:
Homeostasis means resistance to change to maintain a stable and constant internal environment in organisms. Body maintains homeostasis for many reasons like to maintain temperature, controlling pH and glucose levels. If these levels fluctuate, person can get sick.
Metabolic regulation provides an ideal homeostasis mechanism. It is a process by which body takes in nutrients in the form of food and energy is being delivered to us. Metabolic regulation includes regulation of an enzyme in a route of the body by responding either less or more to signals.
D. <span>Cretaceous
</span>Angiosperms<span> evolved during the late </span>Cretaceous<span> Period, about 125-100 million years ago.</span>
Nucleotides. They are the building blocks of DNA.
Well is it what you think the hypothesis is or....?
But an hypotheses is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
I think you can do the rest.
Greenhouse gases while the concrete is being produced and construction waste that is included in the cement.