Mammals that have horns or antlers include deer, antelope, goats, and sheep. is it reasonable to conclude that the traits of horns evolved in a common ancestor of all these animals? Explain why.

Sheep, goats, antelopes, and deer are all members of the Order Artiodactyla, which is also known as even-toed ungulates. However, the deer branched off and evolved separately from sheep, goats, and antelopes. Deers are member of the family Cervidae, whereas sheep, goats and antelopes are from family Bovidae.

Therefore, these animals did not evolve from a common ancestor that has horns. Instead, they all evolved from a hoofed mammal. Moreover, the deer evolved from a cervid that has antlers, whereas, sheep, goats, and antelopes evolved from a bovid that has horns.

Answers:

1. Genetically Identical

2. B

3. Twig

4. Same DNA, look the same

5. No

6. Because of environmental factors

7. 50% mom and 50% dad

8. Somatic cells

9. 277 tries

10. The way the genes are turned on and off determines what an organism will finally

look like. Transcription factors

11. Where do you get the human egg (source)?

12. Sexual cloning and therapeutic cloning

13. Stem cells that do not have a decided direction regarding what type of cell they will

be.

14­16. Opinion based questions that should be answered fully using complete sentences

with explanations for the individual’s stance

Explanation: ur very welcome plus there correct:)