Which best describes the role of a negative feedback loop? The output is reduced so the body can maintain homeostasis. The output builds so the body can maintain homeostasis O Hormone levels in the blood increase to increase effects. Hormone levels in the blood decrease to increase effects.

Enzymes are proteins that speed up reactions by providing an additional energy source supplying additional molecules for the reaction removing inhibitors that slow down reactions lowering the amount of energy required

Environmental differences within ecosystems are generally caused by

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables