Answer:
The rough endoplasmic reticulum
Explanation:
The rough endoplasmic reticulum (ER) is an organelle that has the main function of producing proteins for the cell.
Antibodies are a type of protein, so they are made by the ER.
Since the immune cell can rapidly produce antibodies, it must have a significant amount of rough ER to make the proteins.
Answer:
I believe the answer is C
Answer: A
Explanation:
i took biology and all that fun stuff with trophic levels
Answer:
E. Variations in Earth's orbit occur gradually over 100,000 years.