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The primary neurotransmitter between the nervous system and skeletal muscles is:
Q13: Animals produce different types of urine depending
Q25: The hypothalamic hormone _ controls the release
Q33: A human embryo is known as a
Q38: An embryo was exposed to a chemical
Q47: The excretory system of an earthworm consists
Q61: One characteristic of animal development is the
Q64: Which of these hormones stimulates the production
Q78: Which of the following is closest to
Q90: Mating behaviors can synchronize spawning in animals.
Q104: Spawning depends on:<br>A)the release of a spermatophore