The models below represent nuclear reactions. The atoms on the left of the equal sign are present before the reaction, and the atoms on the right of the equal sign are produced after the reaction. Model 1: Atom 1 + Atom 2 = Atom 3 + energy
Model 2: Atom 4 = Atom 5 + Atom 6 + energy

Which of these statements is most likely correct about the two models?

Both models show reactions which produce energy in the sun.
Both models show reactions which use up energy in the sun.
Model 1 shows reactions in the nuclear power plants and Model 2 shows reactions in the sun.
Model 1 shows reactions in the sun and Model 2 shows reactions in a nuclear power plant.

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the correspondingbones in whales have very different shapes and proportions. however, genetic data suggest that all three kindsof organisms diverged from a common ancestor at about the same time. which of the following is the mostlikely explanation for these data? a) humans and bats evolved by natural selection, and whales evolved by lamarckian mechanisms.b) forelimb evolution was adaptive in people and bats, but not in whales.c) natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.d) genes mutate faster in whales than in humans or bats.e) whales are not properly classified as mammals.