(03.02 MC) A marine scientist measures the energy found in a…

(03.02 MC) A marine scientist measures the energy found in a system consisting of a shark and fish. After the shark consumes the fish, the marine scientist concluded that chemical energy from the fish was transformed to kinetic energy in the shark. Does this result validate or invalidate the Law of Conservation of Energy? (3 points)

(01.01 MC) The oxygen level of a lake suddenly starts decrea…

(01.01 MC) The oxygen level of a lake suddenly starts decreasing. A biologist believes that photosynthetic organisms in the community have become less efficient at producing oxygen. A geologist believes that changes in the ground have increased the inflow of water into the lake. Why are both of these options valid scientific hypotheses? (3 points)