Which of these correctly explains one difference between the processes of photosynthesis and respiration? the krebs cycle occurs only in the chloroplast glycolysis takes place only in the mitochondria. the calvin cycle takes place only in the chloroplast the electron transport chain happens only in the mitochondria.

The correct answer is C, The Calvin Cycle takes place only in the chloroplast

The Calvin cycle takes place only in the chloroplast.

Explanation:

Photosynthesis and cellular respiration are opposite to each because the glucose and oxygen synthesised during photosynthesis are used in the cellular respiration. These two physiological processes take place in different cell organelles. Cellular respiration occurs in mitochondria whereas, photosynthesis occurs in chloroplast. Thus, the Calvin cycle is a stage of photosynthesis takes place only in the chloroplast and the Krebs cycle is a stage of cellular respiration takes place only in the mitochondria.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."