Science Quiz Please Help!!!?

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(TCO 10) The primary function of capillaries is to:
1 exchange materials with cells.
2 carry blood through the body.
3 manufacture blood cells.
4 connect arteries to veins.


2. (TCO 10) Which of the following occurs during a nerve impulse? Sodium ions:
1 flow out of the cell.
2 flow into the cell.
3 are pumped into the cell.
4 are pumped out of the cell.


3. (TCO 10) All of the following are functions of the blood, except transport of:
1 hormones.
2 digestive enzymes.
3 heat.
4 cells.


4. (TCO 10) The sense of smell:
1 can respond to very low concentrations of molecules.
2 requires a long time before odors can be perceived.
3 responds to four basic shapes of molecules.
4 fatigues very slowly.

5. (TCO 10) Dietary reference intakes:
1 are guidelines about the amount and kinds of nutrients one should consume.
2 may be different for men and women.
3 provide nutritional guidelines for pregnant women.
4 All of the above
 
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