Which of the following groups is difficult to define into species using the Biological Species concept? A. Vertebrates
B. Asexually reproducing organisms
C. Sexually reproducing organisms
D. Insects

This is so important ugh its 25 points

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .

Compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.