Which of the following describes a structure that both prokaryotic and eukaryotic cells have in common? (2 points) This membrane-bound organelle encloses the cell's DNA and is where DNA replication occurs.

This organelle is composed of a stack of membrane sacs where proteins are modified and stored.

This organelle extracts energy stored in glucose molecules to power cell functions.

This organelle is composed of protein and RNA and is used to make proteins for the cell.

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Which is one example of a phenotypic change that is not genetic