× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
c
6
r
4
c
3
m
3
h
3
1
3
n
3
s
3
d
3
c
3
a
3
r
3
Home Q & A Board Biology-Related Homework Help General Biology
New Topic  
ilan707 ilan707
wrote...
Go to Answer
Posts: 494
Rep: 0 0
6 years ago
Which process does not return carbon to the atmosphere?
  a. animal respiration
  b. photosynthesis
  c. combustion
  d. plant respiration
  e. decomposition

Question 2

A primary source of carbon for photosynthetic organisms is:
  a. carbon dioxide in the atmosphere and water.
  b. bicarbonate in the water.
  c. nitrate in the soil.
  d. dissolved phosphate in water.
  e. carbonic acid in rain.
Read 65 times
3 Replies
Replies
Answer verified by a subject expert
ajx47ajx47
wrote...
#1
Top Poster
Posts: 550
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

ilan707 Author
wrote...
#2
6 years ago
Love when things are free, so much better than CourseHero
wrote...
#3
6 years ago
tell your friends and feel free to ask more questions
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1127 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 307
  
 385
  
 297