Athin-walled plastic bottle is sealed at an altitude of 19,000 feet. what would happen to this bottle if it is carried down to 1,000 feet? it will shrink and collapse. it will expand and burst. it will expand but will not burst. it will shrink but maintain its shape.

In the context of the neural impulse, which of the following is true about the depolarization of neuron membranes?

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water. b. they use chlorophyll and oxygen to make carbon dioxide and water. c. they use sunlight, water, and carbon dioxide to make sugars. d. they use sunlight, water, and oxygen to make chlorophyll.

Which particle controls what element an atom is?