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 ...

Which part of the pea plant did Mendel remove to ensure his genetic crosses were pure? stamen pistil petals leaves

What is the means by which landmasses slowly move over the surface of Earth called

Identifying unconscious drives is a major concern of biological psychologists. a. True b. False

Boundary between warm and cold water in an ocean or a lake

Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities? A.

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

What molecule, produced in cellular respiration, is used to open and close ion channels? A. ADP B. high energy electrons C. adenosine triphosphate