What three factors are needed for natural selection to occur? Check all of the boxes that apply.

isolation

variation

overpopulation

adaptation

2. Why are enzymes necessary in order for chemical reactions to occur in living systems and organisms?

Describe a short food chain in the ecosystem of your choice. (Make sure to include producers and at least two levels of consumers.)

Definition of osmosis

What kind of neurons are necessary for you to detect pressure on your skin

Why is meiosis not mitosis happening twice?

Once equilibrium is reached, roughly equal numbers of molecules move in either direction across a semipermeable membrane, and there is no further change in concentration on either side of the membrane. true or false

A cell that can differentiate into red blood cells, or white blood cells, or platelet-producing cells, but not into any other cell type can be described as being multipotent, non-potent, totipotent, unipotent, pluripotent

Participants in a new depression study will be assigned according to a randomization schedule that is unknown to the participants and the researchers. The researchers will give participants drug kits in order of their trial start date.

If there are 24 chromosomes in plant cell g1 what is the diploid number

Which is the most correct definition of anthropology? it is the study of modern human cultures it is the study of how human evolution contributed to modern culture it is the study of ancient human culture, comparing it to modern human culture it is