4. Susan can drink one glass of milk without having any symptoms, but if she

drinks two glasses, she gets painful cramps. Do you think her body produces

lactase? Explain.

Which mechanism requires energy? exocytosis diffusion of ions through a potassium channel diffusion of oxygen into a red blood cell osmosis

The arterioles (small arteries) leading to an organ, constrict in order to decrease flow to the organ. To shut down an organ, blood flow is reduced naturally to 2.80% of its original value.

What was the function and importance of s-necked flasks in louis pasteur's experiments in disproving spontaneous generation?

Cells can best be described as: A) the smallest form of matter. B) tiny particles found in food. C) part of the air people breathe. D) building blocks of all living things.

The phenotype for heterozygous organisms is in-between the phenotype for the two homozygous organisms

Critical concentration is Critical concentration is: a. the concentration of tubulin dimers at which assembly is balanced with disassembly. b. the concentration of tubulin dimers at which assembly occurs primarily. c.

Why do all organisms take in matter and rearrange atoms through chemical reactions to form molecules essential for life?

A biologist counts the number of zebras in a population each year and notices an increase in the zebra population. Which describes the biologist's actions? experimentation inference observation interacting

Which is one of the seven characteristics that Mendel observed in pea plants? flower size seed texture leaf shape stem color

When enough experimental data support a hypothesis, the hypothesis becomes a what