The answer is...
C) Medulla Oblongata
(The brainstem is made up of the Medulla Oblongata, Pons, Mesencephalon.)
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.
Answer:
B
Explanation:
Sun to Producers to Herbivores and so on...
Genetic Variation
Natural selection results in organisms that are better suited to their environment are able to pass on genes to create strong offspring
