All arthropods have jointed legs. Describe two other characteristics that would identify an arthropod.

Environmental differences within ecosystems are generally caused by

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.

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these