Lakes that have few nutrients and low primary productivity, such as Crater Lake in Oregon, are classified as eutrophic.
mesotrophic.
oligotrophic.
oligomesotrophic.

How are carbon dioxide emissions affecting the earths natural cycle of temperature change? plz apex

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat.o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat.habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules