Which of the following factors would help improve the water quality in a watershed? 1. responsible use of industrial chemicals
II. reduction of the amounts of fertilizers and pesticides used on farmlands
III. decrease in sewage discharge into lakes and rivers
Select one:

I and II only

I only

II and III only

I, II, and III

i think its c. amphipod

this is a good question! i'll do some research and come back when i have the answer!

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.