The excretory system used by adult mollusks consists of tubules called ____
a. nephrons
b. hepatic tubules
c. metanephridia
d. Malpighian tubules
e. protonephridia
ANSWER: c
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In the absence of oxygen, fermentation:
A. regenerates NAD+ from the reduction of pyruvate. B. regenerates NAD+ from the oxidation of pyruvate. C. generates ATP from the oxidation of pyruvate. D. generates ATP from the reduction of pyruvate. E. None of the answer options is correct.
For most T4 phages, the nucleic acid enters the host cell but the capsid is left outside.
Answer the following statement true (T) or false (F)
What is the name of the response to an injury in which fluids leak from dilated blood vessels, causing redness and swelling?
A. Innate response B. Lymphatic response C. Clonal selection response D. Inflammatory response
The main signaling cascade for cell division and differentiation is the ____ cascade
a. cAMP b. MAP kinase c. phosphoinositol d. phospholipase C e. calcium-calmodulin