I printed out a summer activite to test my skill on science and i found some that i stumbled upon and couldn't figuire out so help?

Question

If im wrong then please correct me.

2.A
3.B
4.B
5.A
6.B

2.Giraffes have long necks that allow them to eat leaves in trees. What is this an example of?

A.Acquirring energy

B.Reproducing

C.maintaining structure

D.not enough information to answer

3.Human skin can heal after it has been cut. What is this an example of?

A.acqurring energy

B.reproducing

C.maintaning structure

D.not enough information to answer