Answer:
b
Explanation:
abiotic factors are nonliving things and gravel is nonliving so that has to be the answer
Answer:
c. all of the other answer options are correct.
Explanation:
The shape of the proteins can be affected by many different environmental factors. The protein is made up of hydrophilic and hydrophobic amino acid. These amino acid interaction with their aqueous environment helps them to gain specific shape.
If we change the concentration of ions then they can interrupt the electrostatic interaction in protein which can cause a change in protein shape.
The pH and temperature change of the environment can also dysfunction the protein by changing protein shape because they interrupt ionic and H bonding within protein. Therefore the correct option is c.
Answer: Oligodendrocytes
Explanation: Oligodendrocytes form the myelin sheath around axons in the central nervous system.
