4. Large areas of land are being developed. In the process thousands of trees are being removed and burned. How
would this affect the cycle?

the correct answer should be false

{apex}

answer; both surfaces of the membrane are nonpermeable

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.  

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.