Quick Biology Question! Please Help!?

Question

Okay There's Two I Need Help With..

1. Which of the following require a host cell because they are not able to make proteins on their own?

a)blue-green algae

b)bacteria

c)protozons

d)viruses

2. Which of the following is a function of the nervous system?

a)releasing ATP into contracting muscle tissues.

b)signaling muscle tissues to contract.

c)producing lactic acid in fatigued muscle tissues.

d)increasing cellular respiration in muscle tissues.

I'll really appreciate it!

:]

Answer 1

not sure about the first one but the answer to #2. is b

Answer 2

1) D 2)B, cells are responsible for all of the other answers.

Answer 3

1:  D

2:  B