Which of the following are thought to have been engulfed by prokaryotic cells and evolved into chloroplasts? ribosomes
O protozoa
O photosynthetic bacteria
O mitochondria
vious

Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion.

Mitochondria

Explanation:

I would say mitochondria because without this, how would energy be produced?

explanation:

idk

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u