Kangaroos conserve energy as they move . A)
by using their front paws to help them run
B)
by using a tailwind to push them forward
C)
by using their hind legs like springs
D)
by running only at night

Charles darwin published his theory of evolution in 1859. in what way foes modern evolutionary theory differ from the theory as proposed by darwin? a) darwin inferred that individuals can evolve, but modern generic science has shown that this is not true. b)darwin inferred that individuals do not evolve, but modern genetic science has shown that this is not true. c)modern science has disproved most of darwin's original theory of evolution, because darwin knew nothing about generations and their role in heredity. d)generic studies have shown that gene expression and other factors operate along with natural selection, but most of darwin's theory has been supported by modern science.

Why should the united state be concerned about air pollution in china?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.