Ships that use ballast water are not in danger of introducing invasive species into aquatic habitats.
true
false

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

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.