What can you conclude about an ecosystem with many trophic levels?
A. It is an unhealthy ecosystem.
B. It is a stable ecosystem
C. It has very few producers.
D. It has no tertiary consumers.

Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.

asap plz when a charge is dropped from a felony to a misdemeanor, which type of plea bargain has happened? ? a. vertical b. horizontal c. avoidance of stigma d. reduced sentence

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? a) in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency. b) flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. c) even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. d) the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today.