Can someone please help me!

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

What kinds of molecules can pass through the cell membrane without any problem?