Which statements describe differences between metaphase i and metaphase ii? check all that apply. chromosomes line up in the middle in metaphase i only. chromosomes condense in metaphase i only. a cell has half the number of chromosomes in metaphase ii. there are twice the number of cells in metaphase ii. spindle fibers exist in metaphase ii only.

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.