Answer:
b. The surfaces of the membrane are nonpermeable.
Explanation:
This helps the cell membrane to protect the cell.
2. A Mendelian trait is caused by a single gene. 3. Traits can be dominant or recessive and recur in a predictable pattern in subsequent generations. ... Autosomal Recessive Inheritance: Autosomal recessive traits can skip generations and can affect both sexes.
Answer: net primary productivity is the amount of energy lost through respiration by producers SUBTRACTED From the gross primary productivity of an ecosystem
I believe it is A
Please make this the brainliest answer