How has the human population changed over time? A. It has slowly decreased
B. It has slowly increased
C. In recent years it has exponentially increased
D. It has remained the same for thousands of years

Which experiment would most likely contain experimental bias ?

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy