The purpose of the distasteful odor emitted from the stinkhorn fern is to
a. attract flies.
b. discourage predators.
c. mimic another fungus.
d. prevent plants from growing nearby.
A
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A binomial is always a
(a) genus. (b) specific epithet. (c) scientific name. (d) two-part name.
Four of the following statements about snakes are true. Which statement is false?
a. All snakes are carnivores. b. All snakes use internal fertilization. c. All snakes are venomous. d. All snakes have flexible skull bones and hinged jaws. e. Some snakes retain skeletal remnants of hind limbs.
Sexual behavior and emotional expression are partially controlled by the
a. pineal gland. b. medulla. c. hypothalamus. d. thalamus. e. cerebrum.
In Drosophila, sex is determined by a balance between the number of haploid sets of autosomes and the number of ________
A) satellited chromosomes B) Y chromosomes C) X chromosomes D) chromomeres E) centromeres