Hormones are secreted by exocrine glands directly into a body cavity or onto a body surface, rather than being transported by the blood
Indicate whether the statement is true or false
FALSE
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Choose the statement that does not accurately characterize associative learning
A. pairing a stimulus that leads to a specific behavior with a neutral stimulus that initially had nothing to do with the specific behavior B. a form of conditioning in which two stimuli are paired C. linking or associating a behavior with a reward D. learning that occurs in the absence of reward or punishment E. operant conditioning
Erosion of soils is of major concern throughout the world and happens mostly because of what factor?
A. Soils are exposed and not covered by plants. B. heavy rainfall C. Soils are exposed to winds. D. Soils are not kept fertilized. E. Soils are frequently flooded.
Which of the following would NOT be likely to pass easily through capillary walls?
a. erythrocytes b. glucose c. ions d. water e. carbon dioxide
In southern copperhead snake venom, you'll find a protein called a disintegrin. Disintegrins bind to a class of membrane receptors called integrins. Platelets use integrin receptors to aggregate at a site of tissue damage
What effect do you think disintegrin has on the snake's prey? A) After the snake bites its prey, the molecule helps in wound healing. B) The molecule helps kill the snake's prey by producing large clots that cause heart attacks and strokes. C) The molecule interferes with clot formation so the venom can travel through the body more efficiently. D) By binding to the platelets, the molecule increases the formation of fibrin.