Suppose you are sitting under an umbrella reading a book. you suddenly look up at the sky to see an aeroplane fly past. explain the sequence of events in your eyes that enable you to see both the printed page in your book and the aeroplane.

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.

The diagram shows a chicken embryo and a human embryo

What does spontaneous generation mean?