What are the materials use for the nucleus and cytoplasm when making a 3d animal cell model?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Modern whales developed their traits through natural selection what occurs during the process of natural selection

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.