A cell contains

A) bacteria and other small organisms.

B) smaller structures that helps it do its job.

C) only empty space.

D) a gel-like liquid with no structures.

B

Explanation:

A is just false- there is no bacteria or other organisms inside cells.

C is incorrect because cells have lots of different things inside them

D is only referring to the cytoplasm in cells.

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation: