According to the top down control, each trophic level is controlled by the very next trophic level. It says that predators control the population of prey.
Therefor the correct answer is D
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<span>The destruction of salt marshes will directly harm each organism except for the deep ocean squid. Salt marsh is an area between land and brackish water which is known to flood. It collects sediments and nutrients that are very essential to the ecosystem.</span>
Answer: No
We get many crops from soil. If we do not get enough crops, we will run out of food and may die. The answer is no.
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They both are formed through the attraction of atoms possessing opposite polarities. Hydrogen bonds is a relatively weak bond between two oppositely charged sides of two or more molecules and in an ionic bond, an atom gives away one or more electrons to another atom, which means the ionic bond is stronger.
