Ez questions- : Fill in the blanks

a. The circulatory system is made up of the heart plus all of the blood vessels and .

b. When we breathe, a large muscle called the helps us draw oxygen into our lungs.

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

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

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.