Answer:
D
the skeletal system provides protection for the brain and spinal cord
Answer:
<h2>The Cornea in the ear</h2>
Explanation:
is the parts of the human body that get oxygen directly from the air and not from the blood
There is no diagram?dudidjdjdjdd dhhdjdd
Answer:
The enzyme that is responsible for this is the cyclin dependent kinase subunit of mpf
Explanation:
This enzyme is also known as cyclin dependent kinase subunit, CDKs. they are protein kinases and can function as cell cycle regulators. They have the power to modify different protein substrates that are useful for the progression of cell cycle. CDKs are inhibitors hence stathmin is inactivated by phosphorylation. They help to control cell divisions. DNA should not be damaged for cell to move from G₁ to the S phase.
The valves prevent the backward flow of blood.
