Sex chromosome abnormalities are more common than autosomal abnormalities because:

A. the autosome is more stable

B. the sex chromosome is more susceptible to mutation

C. autosomal defects are lethal to the fetus

If the lateral hypothalamus is destroyed, a rat will a. drink more water than biologically needed. b. refuse to drink until forced to do so. c. eat until it becomes obese. d. refuse to eat until force fed.

The immune system is built on millions of cells called a. blood cells b. leukocytes c. lymph cells d. immune cells

How do we determine whether we are in protein balance?

What height does the ozone layer start at?

What two kind of cells make up phloem? what is the function of each

En que letran terminan los carbohidratos

Draw a simple diagram of the double loop circulation in birds and mamals

Which is the definition of adhesion? A. The property in which water molecules stick to one another tightly. B. The property in which water molecules easily evaporate into a gas. C.

DNA replication involves producing new copies of DNA molecules. How many individual DNA strands exist after one molecule of DNA has been replicated?

Explain each of the following modes of evolution in a population. For each one, describe the cause of change in the genetic makeup of a population and how the population evolves as a result of that change, and provide 1 "real world" examples of the