In this experiment, DNS is converted to ANS. The optical density of ANS in solution is used as an indicator of sucrase activity. Why?

During digestion, water is both added and removed. Which area of the digestive system removes water? A. mouth B. esophagus C. liver D. large intestine

Blood cells are produced in which system?

What type of succession do you think is displayed in the case of Mount Saint Helens? Why? O Primary succession because there is soil left O Primary succession because the lava wiped away all the soil, leaving bare rock Secondary succession because

The part of a. Soundwave that we hear as loudness is

You take a human smooth muscle cell and block the release of calcium from the sarcoplasmic reticulum. What effect does that have on contraction of that smooth muscle cell, and why? A.

Over time, bacteria have become increasingly resistant to antibiotics. Explains this in terms of natural selection.

Active transport involves all of the following except the A) diffusion of solute through the lipid bilayer of a membrane. B) pumping of solutes across the membrane. C) hydrolysis of ATP. D) transport of solute against a concentration gradient.

List three methods used to prevent the evaporator from becoming too cold and freezing

The french biologist lamarck proposed that

A scientist performed an experiment on mice. Her results are posted below. Lung Cancer in Mice Experiment Group Duration of Cigarette Smoke Exposure Number of Cases of Lung Cancer 1 0 days 0 2 500 days 3 3 1,000 days 27 4 1,500 days 32 After