Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.
I think it’s D i hope i’m right
Organization,metabolism,responsiveness,movement,development,and reproduction.
Answer:
A dolphin's flipper, a bird's wing, a cat's leg, and a human arm are considered homologous structures. ... Bats, whales, and many other animals have very similar homologous structures, demonstrating that these creatures all had a common ancestor
Just don't worry about the human part
hope this helps
Answer
True
Explanation:
Living organisms need water to live