A male spider inseminates a female spider by
A) normal abdomen to abdomen mating.
B) external fertilization where a male spider dances a female over a spermatophore packet.
C) injecting sperm with his pedipalps and then rapidly retreating before being eaten.
D) transferring sperm via silk.
E) avoiding the dangerous female spider altogether and fertilizing the eggs after they are laid in an egg case.
Correct Answer:
Verified
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A)are extinct.
B)feed on fluids of soft-bodied
Q14: Eurypterids
A)resembled insects.
B)are extinct.
C)are called sea spiders.
D)were very
Q15: Spiders and insects have an excretory system
Q17: Spiders breathe by means of
A)gills.
B)diffusion across the
Q18: Trilobites exist today as
A)freshwater dwellers.
B)terrestrial crustaceans.
C)aquatic insects.
D)horseshoe
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A)carnivorous.
B)herbivorous.
C)omnivorous.
D)both carnivorous and herbivorous.
E)All of the
Q20: Horseshoe crabs
A)are,like their relatives the trilobites and
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