Which of the following characteristics is shared by both primary and secondary consumers? .Uses the Sun's radiant energy to produce food A
.The first step in any food chain diagram B
.Eats only plants to gain needed energy C
.Gains energy by eating other living things D

Most of the volume of an atom is occupied by the

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic