Answer:
a. barking
Explanation:
they inherit that from their ancestors.
all the other characteristicscan be developed by the dog over time.
i hope this helped you
U・ᴥ・U
Answer:
Around the 1943, centuries ago
Explanation:
Answer:
I think infants and small children
Explanation:
Their body is still developing and kids are at a high chance if dying young anyways
