From what part of aerobic respiration do most

of the carbon dioxide molecules we exhale
come?



a. glycolysis
b. Krebs Cycle
c. electron transfer
d. phosphorylation
e. more than one of these


B

Biology & Microbiology

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Which of the following is required by plants in the smallest quantity?  

A.  boron B.  potassium C.  phosphorus D.  nitrogen E.  sulfur

Biology & Microbiology

Which phylum is a member of the Radiata clade?

a. Nemertea b. Porifera c. Rotifera d. Ctenophora e. Echinodermata

Biology & Microbiology

Sponges live in

a. shallow tropical seas. b. fresh water. c. cold, Antarctic seas. d. undersea farms. e. all of these.

Biology & Microbiology

Refer to the accompanying figure. Which of these lungs would have the greatest surface area?


a. 1
b. 2
c. 3
d. 4
e. All have equal surface area.

Biology & Microbiology