1. which of the following is the most effective way to preserve biodiversity?
a. captive breeding b. habitat destruction c. habitat preservation *** d. habitat fragmentation 2. which of the following describes the use of a renewable form of energy?
a. using natural gas to heat a house b. using a windmill to grind grain c. using petroleum to run a car d. using coal to generate electricity?

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates