Which statement is true A. An organism is part of a community. B. Acommunity is part of population C. An ecosystem is made up of only organisms D. A biome is the biotic part of an ecosystem

(A) is the correct option

Explanation:

An organism is part of a community is correct,where species interaction occurs between different organisms A community is part of population is the incorrect statement because a community includes group of population of two or more different speciesAn ecosystem is made up of only organisms is the incorrect statement because ecosystem is the community of both living and non living components of the environment and how they interact with each otherA biome is the biotic part of an ecosystem is incorrect because biome includes the community of both plants and animals occupying a large habitat

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature