Question

1. what separates rabbits/primate from the crocodiles on this cladogram? hair
2. which organism is most related to the rodents and rabbits on this cladogram? primates
3. what 5 traits do the bird and its closest relative share?

Explanation:

Question 8

To determine what separates rabbits/primates from crocodiles on the cladogram, we analyze the traits. Rabbits/primates have "Hair" (a trait marking mammals), while crocodiles do not have hair. The cladogram shows a red bar for "Hair" separating the branch with rabbits/primates from crocodiles.

On the cladogram, organisms with the most recent common ancestor are most related. Rodents & rabbits and primates share the "Hair" trait branch, so primates are most related to rodents and rabbits (since they are on the same branch after the "Hair" trait split, closer than other groups like crocodiles or birds).

To find traits birds and their closest relative (crocodiles, from the cladogram) share: 1. Vertebrate (all shown are vertebrates), 2. Bony skeleton, 3. Four limbs, 4. Amniotic egg, 5. Eggs with shell. These are the traits along the branch leading to both birds and crocodiles (before the split between them and the mammal branch).

Answer:

Hair (the presence of hair in rabbits/primates and absence in crocodiles, as indicated by the "Hair" trait on the cladogram)

Question 9