Astudent made a model of an ecosystem inside a sealed plastic bottle. she placed soil, rocks, water, plants, and animals inside the bottle. how is the model like a natural ecosystem? a. it illustrates the cycling of matter just like in a natural ecosystem b. it lacks predators just like in a natural ecosystem c. it has the same amount of diversity as a natural ecosystem d. it lacks producers just like in a natural ecosystem

It illustrates the cycling of matter, just like in a natural ecosystem. -apex.

A. It illustrates the cycling of matter just like in a natural ecosystem

Explanation:

An ecosystem is a biotic community in which the biotic or living factors interact with their physical non living environment which includes the abiotic factors like soil, rocks, water, wind and sunlight.

In the given situation the model includes soil, rocks, water, plants and animals inside the bottle this describes the relationship between the abiotic and biotic factors in an ecosystem. This shows that a proper cycling of matter generated by one living organism will be transferred by the process of food chain and by biogeochemical cycling of inorganic and organic nutrients like carbon, nitrogen and others that involves water and soil as physical agents. On the basis of this A. It illustrates the cycling of matter just like in a natural ecosystem.

enzyme speed up the reactions

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation: