mitochondria and chloroplasts may have arisen through

What will be an ideal response?


endosymbiotic events

Biology & Microbiology

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About half of all flowering plant species, including many important crop plants, are ____

a. polyploids b. haploids c. aneuploids d. euploids e. diploids

Biology & Microbiology

A population of birch trees is present on the side of a mountain and is preyed upon by beetles that burrow into bark. Which tree would be the most fit?

A) a tree that grows to be the tallest B) a tree that has thicker bark C) a tree with more active photosynthetic enzymes D) a tree that has thick, strong roots

Biology & Microbiology

What is the name of the enzyme that forms nitric oxide?

a) nitrous oxide hydrolase b) nitric oxide dismutase c) nitric oxide synthase d) nitric oxide oxidase

Biology & Microbiology

The nuclear membrane re-forms during

A) interphase. B) metaphase. C) prophase. D) telophase. E) anaphase.

Biology & Microbiology