The great Chain of Being developed from ideas
written many centuries earlier by
a. Aristotle.
b. Darwin.
c. Linnaeus.
d. Cuvier.
e. Wallace.
Answer: a
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As mature adults, male squid have a modified tentacle that carries their sperm. Sperm are
produced in testes and transferred to this modified appendage prior to mating. During courtship and mating, the male will insert this tentacle into a structure know as the mantle cavity of a female, where the eggs are waiting. Fertilization occurs within this body cavity. Which of the following is true about this scenario?
a. Internal fertilization occurs. b. External fertilization occurs. c. These animals have an amniotic egg. d. both (a) and (c)
In converting carbohydrates into fats, acetyl molecules are combined to form
A. amino acid. B. glycerol. C. fatty acid. D. keto acid.
Hydrophilic molecules
A) do not readily dissolve in water. B) are repelled by water. C) are neutral and nonpolar. D) form hydrogen bonds among themselves. E) readily dissolve in water.
Infectious protein particles are called
A) Oncogenic viruses B) Viroids C) Spikes D) Prions E) Phages