What is the name for the muscular contractions that push food through the digestive system?

A. Villi

B. Peristalsis

C. Elimination

D. Pepsin

How does the nervous system influence other body systems at the start of the race?

What two systems work together in the human body to aid in support and movement?

What kind of scientist might study the process of undifferentiated cells becoming differentiated and specialized cells in the body?

Relate peak flow to lung function

Why is it important for scientists who study ecosystems to study more than the organisms that live there?

How are Australia's fires relevant to today's vocabulary word "Succession"?

Water moves between the ocean, atmosphere, and land. In which form does water enter the atmosphere?

Suppose you use a microscope to look at a cell from the leaf of a tree. What structure will you see that would not be found in a cell from your fingernail? A. mitochondria B. cilia C. cell wall D. ribosomes

Name the three energy roles that organisms fill in an ecosystem.

Adrenergic postganglionic neurons release the hormones norepinephrine and epinephrine. Adrenergic postganglionic neurons release the hormones norepinephrine and epinephrine. True False