In a healthy human approximately how many erythrocytes would be present in a drop of blood mm3

Which of the following best relates behavior and evolution? A. Most behaviors aren't influenced by genes and, therefore, aren't able to evolve. B. There's no link between inherited behaviors and evolution. C.

Which of the following correctly predicts what would happen if a plant was lacking stomata? It would not have chloroplasts needed for photosynthesis. It would lack structural support tissue, causing it to collapse.

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

Traditional ecological knowledge is A. rarely shared in local languages B. not well known in the West because some species and ecological interactions exist in only one place C. not useful in the contemporary world D. extremely valued by Westerners

Air, water. plants and animals are blank resources because they can be replaced in what

What is an earth revolution, what shape is it's path, and how long it last

Mitosis and meiosis are methods of cell division. Which of the following is true of these two methods? A. Meiosis involves only one division, while mitosis involves two divisions. B.

What is empirical evidence and what is it not

What is a theory in biology

How might damaged alveoli affect the o2 level in the blood