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One gene can influence trait(s). one trait can be determined by gene(s).

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?