Bacteria perform each of the following ecological roles. Which role typically does not involve symbiosis? Bacteria perform each of the following ecological roles. Which role typically does not involve symbiosis? aggregator with methane-consuming archaea gut mutualist skin commensalist decomposer

well

explanation:

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

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )