As a fertilized egg divides, the cells differentiate because they-

A. contain a lipid bilayer

B. can clump together

C. metabolize sugars rapidly

D. have specific genes activated

The rainforest is being cut down at an average rate of 9000 square kilometers per year. What effect does deforestation have on the atmosphere?

Using the processes of diffusion and osmosis molecules (particles) always move from?

If oxygen atoms are in low concentration outside of a cell, but the cell requires more oxygen, how will the cell move the oxygen inside the membrane? A. diffusion B. osmosis C. active transport

Terry has recently been diagnosed with an inherited form of depression. which of the flowing is the most likely cause or the depression? a. Terry has a mutation in the enzyme involved in NE synthesis b.

How can a cell replenish its supply of ATP even if it can no longer break down glucose

Explain why different surfaces have different albedos.

Ab blood type is the universal blood recipient because of that type's lack of agglutinogens. ab blood type is the universal blood recipient because of that type's lack of agglutinogens. a. True b. False

Insulin preparations are divided into categories based on onset, duration, and intensity of action following subcutaneous inject. Which of the following insulin preparations has the shortest onset and duration of action? A. Insulin lispro B.

Melting snow, rain, and storms can all lead to which event?

If an organisim has 32 chromosomes in its skin cells, how many chromosomes will be in its gamtes following meiosis?