Answer: A, B
Explanation:
i got it wrong then it showed me the answer
Because during sleep animals can recuperate and gain new strengths so they can tackle the challenges of the new day. Sleeping has protective functions for the brain because it removes toxins that build up during the day. Furthermore, sleep is helpful because the animal can rest during sleep and be ready for each new day.
I believe that hair and limbs are homology because all mammals have hair and similar limb structure. Hair loss and social behavior on the other hand are homolasy because not all mammals have them. Homology is the similar traits due to common ancestry while homoplasy is similar traits for other reasons other than common ancestry.
Internal organs and tissues of an organism