The increasing concentration of a chemical as it moves through the links in a food chain is called biological amplification trophic magnification toxic accumulation chemical amplification

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

Sickle cell amelia is a condition condition where the red blood cells are deformed which is affected by sickle cell amenia