4 is B. It wasn't in the genes to get short wings.
5 is C. It should be natural selection but adaptation is another way to say ns.
Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.
Any animal that has alot of thick fur can produce cashmere wool.
Answer: An elevator coming to a stop would reduce its speed and velocity, and have a negative acceleration
Hope it helps :)
