Answer:
Not appropriate question.
Explanation:
Required Information is not provided to answer the question.
Hello there!
The correct answers are:
A. Mammals
B. Birds
D. Reptiles.
Hope This Helps You!
Good Luck :)
I believe the answer is the rodent mutates a new allele for gray hair
Answer:
So they are lighter and move quicker.
Explanation:
With the small wings and bodies birds have it would be hard for them to escape predators and lift their own weights if their bones were dense like humans' bones. The hollow part of the birds' bone is connected to their lungs so they have enough oxygen to fly easily. Hope this can help you! :)