Most autotrophs make “food” through the process of
a. photosynthesis.
b. homeostasis
c. chemosynthesis
d. cellular respiration

A) photosynthesis

Explanation: Autotrophs are organisms that make their own food. Humans and animals do not make their own food. Instead, they get their food by eating other organisms. Organisms like plants can make their own food using photosynthesis, which would make them autotrophs.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

thinking it would be d not too sure but i think it's right