Which are the most numerous and diverse vertebrates?
a. reptiles
b. bony fishes
c. mammals
d. lancelets
e. cartilaginous fishes
Ans: b. bony fishes
Biology & Microbiology
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The hormone that helps us respond to low oxygen levels by promoting an increase in red blood cell counts is
A. erythropoietin. B. hemopoeitin. C. renin-angiotensin. D. adrenocorticotropin. E. estradiol.
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What accumulates inside the thylakoid compartment during light-dependent reactions?
a. glucose b. hydrogen ions c. O2 d. CO2 e. ATP
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The cetacean body is covered with fine hairs
Indicate whether the statement is true or false
Biology & Microbiology
A properly functioning immune system is responsible for
A. destruction of foreign material. B. recognition of foreign material. C. surveillance of the body. D. All of the choices are correct.
Biology & Microbiology