The most common limit to plant growth is a lack of

a. phosphorous.
b. carbon.
c. hydrogen.
d. oxygen.
e. nitrogen.


E

Biology & Microbiology

You might also like to view...

Which of these animals uses positive pressure breathing?  

A.  reptiles B.  mammals C.  amphibians D.  birds

Biology & Microbiology

Which biome is located where a freshwater river meets an ocean?

a. estuary b. stream c. source water d. channel

Biology & Microbiology

The metabolic reactions that occur in all cells require a certain molecule that was also believed to be present very early on Earth. What is this molecule?

a. nitrogen b. carbon c. water d. oxygen e. hydrocarbon

Biology & Microbiology

The facial features seen in the child pictured here are characteristic of what syndrome?

1.Down syndrome 2.Trisomy 13 3.fetal alcohol syndrome 4.Cri du chat

Biology & Microbiology