As the result of an experiment, you reject your hypothesis. Explain why you should not consider your efforts a waste of time?

How does the study of genetic disorders such as pku biologists understand normal alleles?

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above

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.