Question

(7) The carbon-oxygen cycle illustrates how

A) Herbivores give off oxygen
B) Producers give off oxygen
C) All organisms give off carbon dioxide
D) Both B and C

(8) When animals excrete urea, which type of organism is responsible for converting this waste into a form that is usable by plants?
A) Decomposers
B) Lichens
C) Climax community
D) Saprophytes

Answer 1

hello there your anwers to these two are

7)D

8)A

i hope this helps you out

have a great evening

FaithRawlins14

Answer 2

I made a guess on #8

7: D

8: B