Answer:
A vaccine activates our immune system without making us sick. Many dangerous infectious diseases can be prevented in this simple and uncostful
drug .Vaccines have eliminated some of the most dangerous, fatal diseases in human history.
I’m pretty sure it’s the first option, if not I am so sorry.
Answer: C) Apical
Explanation: An epithelium has a free surface, the apical surface, exposed to the outside, and an attached surface, the basal surface, resting on the underlying connective tissue.
The ecosystem will collapse and fail because every species are needed and play a role in the ecosystem.
Ear muscles and tailbones are examples of vestigial structures found among the <span>Caminalcules. </span>
