Hemostasis is
a. a four phase process to clot blood in the veins.
b. a three phase process to clot and seal wounds.
c. a process of leukemia formation.
d. a type of anemia.
e. none of these.
Answer: b
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What important feature(s) of noncovalent bonds makes them so important to life?
A. They are strong bonds that hold atoms together tightly in cells. B. They are weak in a cellular environment so they can be made, broken, and reformed easily. C. They can only occur in cells. D. Both a & c. E. Both b & c.
A cheetah is chasing a gazelle. What division of the vertebrate nervous system is regulating the stress response in both animals?
The PNS comprises the somatic (voluntary) and autonomic (involuntary) nervous systems. The sympathetic division of the autonomic nervous system activates the body for fight-or-flight responses. The parasympathetic division generally promotes relaxation and digestion (or "rest and digest"). A. somatic nervous system B. parasympathetic nervous system C. sympathetic nervous system D. parasymbiotic nervous system E. cerebral cortex
__________ in annelids regulate the composition of
body fluid. Fill in the blank(s) with the appropriate word(s).
A gardener planted large, healthy flower bulbs in her garden. When spring arrived, green shoots emerged from the bulbs, and some of them, but not all, produced flowers. She decided to dig up a few bulbs that flowered and a few that didn't to see if she
could see what the difference was. She was stunned to find that none of the bulbs looked healthy; they all appeared much smaller. What had happened? A) The bulbs were a sugar source; sugars from them traveled up the phloem to the aboveground sugar sink. B) The bulbs gave off water as they produced shoots; their smaller size was due to dehydration. C) All of the molecules in the bulb were transferred to the aboveground shoots. D) The bulbs were a sugar sink, so water flowed into them and out the roots, washing material from the bulb into the soil.