Question:
Use evidence from the fact that using tools is a learned characteristic to answer the following question. "a learned characteristic is a"

Answer:
toddler banging with a stick while parent hammers

Question:
Use evidence from the fact that some adult animals lay eggs to answer the following question. "This animal evolved to reproduce using protective containers instead of live little entities:"

Answer:
platypus

Question:
Use evidence from the fact that harming something has a negative effect on that something to answer the following question. "A child smacks another child, causing hurt, which causes the smacked child to"

Answer:
sob