Which of the following can be used to communicate ideas? a. symbols and illustrations b. charts and spreadsheets c. oral and written reports d. all of these

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.