Which best describes how dna fits inside a cell nucleus? dna folds into stacked layers called chromatin, which then squeeze into the nucleus. dna is double-stranded, so one strand is inside the nucleus and the other wraps around the nucleus. dna tightly coils around proteins and condenses into chromosomes, which fit in the nucleus. dna is naturally much smaller than the cell nucleus so it easily fits inside the nucleus.

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.