What is not involved in a spinal reflex?
a. spinal cord
b. brain
c. sensory neuron
d. motor neuron
e. gray matter
b
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What hormone regulates milk production in mammals?
A. growth hormone B. prolactin C. thyroid-stimulating hormone D. adrenocorticotropic hormone E. luteinizing hormone
Four of the five answers correctly describe trends in plant evolution. Select the exception
a. nonvascular to vascular b. sporophyte dominant to gametophyte dominant c. motile to nonmotile gametes d. seedless to seeds e. haploid to diploid dominance
Which layer of sedimentary rock shows the
presence of fish?
a. Unkar Group b. Manakacha Formation c. Kaibab Limestone receptors d. Redwall Limestone e. Chuar Group
One reason industrial pollution is such a problem is because
A. industrial commodities are scarce. B. demand is set by price. C. consumer demand is too low. D. prices of the industrial product never include environmental costs.