Biomanipulation takes advantage of a trophic cascade

nutrient subsidies

a bottom-up effect

ecosystem engineers

the 2nd law of thermodynamics

it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is

where is the scientific experiment?

the answer is 100% density i've answered this question before and done the quiz myself.

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,