90 million years ago (mya), a single bat species existed on a landmass. That species served as a common ancestor of the four bat species now found in the region. The image below shows how the landmasses have changed over time and the current distribution of the bat species.

Based on the geographical distribution of the bats over time, which of the following is most likely true about the evolutionary relationship of these species?

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.

idk and i also need to know where are those bio brainy acts lol