Tih. 3. Now that we have determined the source of the infection, we need to determine the causative
agent. We have narrowed it down to 3 possible agents of disease. What were they and why did
we rule out the others?

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere

Which of the following explains why a tree is often used as a model to represent the principle of common descent

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.