Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check all that apply.

In the biology lab, you observe animal cells under a microscope. in one slide you see the nucleus with two nucleolus areas of compact chromatin. the value in packaging dna in tighter forms of chromatin is for

List the four levels of organization in the human body from smallest to largest. Give an example of each level.

What must be done to breed dogs for a particular trait? a. Mate two dogs that have the desired trait. b. Protect dogs with the trait from natural selection. c. Mate any dogs and see what variations occur. d.

The combination of chemical reactions through which an organism builds up or breaks down materials

What was Friedrich Mieschers contribution to the discovery of the genetic code?

Which of the followings is true about gluconeogenesis? A. One ATP and one GTP is needed to convert pyruvate to PEP B. Oxaloacetate is involved in generating PEP C. Gluconeogenesis primarily occurs in the mitochondria D. In occurs in the brain

If Zack is guilty, and the mystery food sample contains protein, which test tube will the mystery food sample resemble?

An open system in which the growth rate of microorganisms is maintained by adding a nutrient (present in limiting quantities) at the same rate that medium containing microorganisms is removed is called a ...

Cooking oil lipids consist of long, unsaturated hydrocarbon chains. would you expect these molecules to form membranes spontaneously? why or why not?

Which area is studied by biologists