True or False: According to the above phylogeny, Chondrichthyes (sharks, rays, chimaeras) were the first to evolve lungs or lung derivatives.

What does it mean for a cell membrane to be selectively permable

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

All organisms contribute some water to the water cycle by conducting