Ahhh here is a bio question for plato/edmentum

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

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.

There are only about 250,000 known fossil species. true or false