Which is the most sustainable practice

A. Using natural gas for electricity

B. Using more wind power

C. Building more coal power plants

D. Drilling deeper for oil

Where does the sea-floor spreading take place? A. Convergent boundaries B. Transform boundaries C. Oceanic volcanoes D. Mid-ocean ridges

Prior to the industrial revolution in England the peppered moth had light coloration and lived on trees covered with light colored lichen. This provided camouflage against predatory birds.

Describe fully the way cells in a tissue receive all their requirements and the way all I wanted products are removed.

In which phase does crossing over occur

Where is The worlds supply of usable fresh water found

Match the following terms to their definitions. a. empirical evidenceb. independent variable c. dependent variable d. controle. hypothesis1. the variable that changes in response to experimentation 2. data or facts that can be observed 3.

What determines the genotype of an organism A. the foods the organisms eats during its life B. The number of children the organism has C. The alleles that are passed from parents to offspring D. The amount of sleep the organism gets

The sensory division of the nervous system carries nerve impulses from

In the respiration equation does energy act as a reactant or a product

Describe the flow of energy as it flows up an energy pyrsmid