Which animal uses its skin for respiration? A. pelican B. lion C. toad D. mackerel

Match the terms with the correct definitions. 1. a nonprotein molecule or ion that is needed for an enzyme to carry out catalysis 2. an enzyme unable to act as a catalyst because its cofactor is removed 3.

What do valleys on the surface of a planet or moon suggest about previous land features? A. the presence of human life forms B. the presence of water C. the presence of earthquakes D. the constant bombardment of asteroids

Ap biology biochemistry activity #8 answers what are the key properties of enzymes and what

Which statement BEST describes a relationship between the organisms in the food web shown above?

Which best explains what happens to the motion of the pendulum due to the law of conservation of energy?

NASA has published a list of criteria for identifying fossil bacteria in samples from Mars, as part of a search for evidence of life. Which of the following is good evidence for the presence of bacterial cells? a. The cell size of 0.5 to 2 microns b.

How much rain does a dessert get each year?

Select the correct answer. in a family, the father is affected by a genetic disorder. The son in the family has the same disease, but the daughters do not have it. What type of inheritance is this? A. Y-linked B. X-linked C. Polygenic D. Codominant

Which of these is a heterozygous genotype? Select one: a. Tt b. TT c. ta d. tt

What is the final outcome of meiosis