True or false: External fertilization is generally associated with large numbers of offspring and low levels of parental care
A. true
B. false
A
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The place where two plates meet and scrape past one another, creating stress that results in earthquakes, is a(n)
A. oceanic ridge. B. subduction zone. C. transform boundary. D. supercontinent.
Most of the carbon dioxide in the blood is transported:a
by being dissolved in plasma. b. as bicarbonate ions. c. by hemoglobin. d. as carbonic anhydrase. e. as carbonic acid.
Birds, snakes, lizards, turtles, and crocodiles are all thought to share a common ancestor and several homologous traits. Assuming that this is true, these groups of animals and their common ancestor would represent
A. an outgroup. B. a monophyletic group. C. homoplastic convergence. D. a polyphyletic group. E. a species cluster.
Which neurotransmitter is released from a motor neuron at the neuromuscular junction?
A. Dopamine B. Acetylcholine C. Epinephrine D. GABA E. Serotonin