Mendel believed that during the formation of gametes, the pair of genes controlling a trait separate. he called this the principle of
a. dominance
b. segregation
c. separation
d. recession

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles