Answer:
1) circulatory and respiratory
2) endocrine
3) circulatory
4) circulatory and nerves
Explanation:
I think these are right. Sorry if they are not.
Answer:
Wearing bright colors help drivers see you.
Explanation:
I say the last one because were dull colors wouldn't really get the drivers attention, but unlike bright colors they can see you because colors such as yellow can definitely illuminate the drivers eyes.
C. a person who is in a monogamous relationship and has protected sex.
Vitamins work with enzymes to initiate chemical reactions within cells. Vitamins plays an indirect role in catalysis, where in the beginning of the chemical reaction speeds up with the help of enzymes, in order to participate in catalytic reactions.
