Answer:
b. chemoautoptrophs
Explanation:
They are called chemotrophs; this means that they obtain their energy from chemical reactions.
The answer is A. the presence or absence of an envelope
When an ion or a molecule passes through a membrane without something facilitating, or encouraging that passage, such as a protein does. What drives it is the force of the diffusion itself instead.
6. a: mRNA
11. b
16. true
18. a
19. a
20. idk
