Which of the following is most likely to be the source of most of the oxygen in the atmosphere?
A) weathering of rocks
B) UV radiation
C) photosynthesis
D) macroevolution
C
Biology & Microbiology
You might also like to view...
In the savanna, ____ lasts for months
a. cold temperatures b. storms c. periods of fast growth d. fires e. droughts
Biology & Microbiology
Which organ system filters wastes from the
blood?
a. respiratory b. urinary c. digestive d. endocrine e. circulatory
Biology & Microbiology
The lungs move easily within their protective sacs due to
a. intrapleural fluid. b. leaking plasma. c. blood. d. mucus. e. both leaking plasma and mucus.
Biology & Microbiology
Identify the role of oxygen in photosynthesis
A) It is split to form sugar. B) It is the final electron acceptor. C) It is a waste product in the light reactions. D) It is the initial electron releaser.
Biology & Microbiology