The correct answer is D. Hope this helps :)
Answer:
They help each other defeat the antigen, The immune system is weaker, and antibodies.
Explanation:
The correct answer is "is a programmed mechanism of cell death".
Apoptosis by definition is programmed cell death. Apoptosis happens when the cell recognize irreversible damage weather in the plasma membrane, cytoplasm, organelles, or in the genetic material inside the cell. This is to prevent proliferation of damaged or mutant cells that can lead to the development of neoplasm.
The appropriate name for a group of squid is a squad. A squid is a cephalopod with eight arms and two long tentacles. These soft-bodied creatures are used to prepare meals like calamari. And they share several similarities with octopuses.