How are chordates further divided into three subphyla? A. By their habitats
B. By the presence or absence of a notochord
C. By how they obtain food
D. By their body structures

Photosynthesis converts solar energy into what type of energy?

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.

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.