What is a trench? Select all that apply. A very dark place
The deepest parts of the sea floor
An example of a mid ocean ridge
A pickle

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the

Which of the following statements is true of cells