The carbon cycle begins with ________.

A. carbon dioxide fixation
B. aerobic respiration
C. the conversion of carbon dioxide to methane
D. anaerobic respiration


Answer: A

Biology & Microbiology

You might also like to view...

In which of the three vertical intertidal zones is biodiversity the highest? Why?

What will be an ideal response?

Biology & Microbiology

Which blood vessel will deposit the oxygen rich blood within the glomerulus?

a. Efferent artertiole b. Peritubular capillaries c. Afferent arteriole d. Renal vein e. Renal artery

Biology & Microbiology

Your friend Matti accidentally injected himself with double the correct dosage of insulin. He has collapsed. Quick! It's all up to you. What do you do?

A) Give him CPR. B) Inject him with thyroxine. C) Give him glucagon. D) Inject him with more insulin.

Biology & Microbiology

During an infection, B cells divide to form ________ that will be ready for the next time the B cells encounter the same microbe.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology