The genetic material of prokaryotes is
a. RNA.
b. linear.
c. circular.
d. single-stranded DNA.
e. protected within a double-membrane structure.
Answer: c
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Which stage of development involves cell division without cell growth?
A. fertilization B. cleavage C. neurulation D. gastrulation E. organogenesis
Unlike saturated fats, the fatty acid tails of unsaturated fats incorporate one or more ________
a. phosphate groups c. double bonds b. glycerols d. single bonds
The larvae of some cnidarians are known as __________ larvae
A. veliger B. trochophore C. planula D. nauplius E. zoea
Which of these is correct concerning sodium ion regulation?
A. An increase in extracellular sodium causes decreased water reabsorption in the kidneys. B. Increased water reabsorption causes a decrease in blood volume. C. Increased blood pressure causes a reduction in ADH secretion. D. A reduced rate of renin secretion results in an increased rate of aldosterone production. E. All of these are correct relationships.