The answer would be chromosomes
B.)Ecosystem
A community resides within an ecosystem, a population within a community, and an individual within a population
D. Photosynthesis only takes place in the light, while cellular respiration takes place in the light and dark.
<span>Of the 118 elements that have been discovered, 90 of them indisputably occur in nature. There is disagreement over whether four more or eight more occur naturally as a result of radioactive decay of other natural elements. The answer is, therefore, 94 or 98.</span>