__________ are free-living and usually kill their prey. Fill in the blank(s) with the appropriate word(s)
ANSWER: Predators
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Increases in fishing effort have led to a proportional increase in fisheries yield
Indicate whether the statement is true or false
ACTH (adrenocorticotropin hormone)ACTH (adrenocorticotropin hormone)
a. is secreted by the posterior pituitary. b. has target cells in the autonomic nervous system. c. has target cells in the adrenal glands. d. has target cells in the adrenal medulla. e. initiates the autoimmune response
Predators can switch to alternative prey when a
prey species is low in abundance as is shown in a. type I response. b. type II response. c. type III response. d. types I and II. e. none of these.
What would a drug that caused sodium to leak into a neuron do?
A) It would cause the outside of the neuron to become more positive. B) It would trigger an action potential in the neuron. C) It would cause the inside of the neuron to become more negative. D) It would cause potassium to move into the neuron as well.