It would speed up because genetic changes spread more quickly among fewer individuals.
Answer:
C. Lizards were the first organisms on Earth to have limbs.
Explanation:
This cladogram illustrates when and in what species novel anatomical traits occurred. All the organisms that follow after a certain point will have this trait present. Thus, earthworms are the first species to evolve segmented bodies which will be present in all the following organisms such as salmons. Here, segmentation is found in the vertebrae of the backbone as well as in the muscles and nerves that spread from the spinal cord, at a finer level.
This cladogram does not illustrate the evolutionary time relationship between different species. Thus, it cannot be inferred that the kangaroos evolved after earthworms.
Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young. Internal fertilization also enhances the fertilization of eggs by a specific male.
