Which of the following best explains why herring gull chicks were one of the first species to exhibit the effects of pollution, according to the figure? A.
Toxins decrease in concentration as one moves up a food chain.

B.
Toxins increase in concentration as one moves up a food chain.

C.
Toxins have less of an effect on herring gulls than on other species.

D.
Toxins affect terrestrial organisms more severely than aquatic organisms.

What does resonance result in? quieter sounds frequency amplitude louder sounds

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

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). the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. d). even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true.