Which of the following statements about cycles of matter is true?
a.
matter is lost in each cycle.
b.
human activity has little or no impact on cycles.
c.
each cycle involves evaporation and condensation.
d.
matter moves between the environment and living things.

The correct answer is option D.  

Explanation:

The matter is transferred between the biotic and abiotic parts of the environment. Matter cycle is the cycle of different matters in between the living and nonliving or atmosphere of the environment.

Matters cycle includes different matters like nitrogen, carbon, water, and others. It allows the regeneration of needed matters by recycling. It is also affected by human activity.

Thus, the correct answer is option D.

i think the answer is gold im not entirely sure

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.