The deepest parts of the ocean are hostile to life. a barren stretch of sea floor recently experienced an earthquake that opened up a hydrothermal vent. this vent provides heat and nutrients. over time, the area became filled with various deep-sea life forms. what kind of ecological activity is this? this is a form of

If you are in a chronic state of anxiety but also suffer from moment of sudden, intense fear you are problably suffering. from

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.

The part of the eye that closes and opens to let light in is .