To determine the absolute age of rocks and fossils, geologists use

stratigraphy

the identification of periods of glaciation

the rates of decay of radioactive elements

the order in which rock layers occur

The cells primary site of ATP energy production is the:

Suppose a researcher wants to know whether a high protein diet causes children to learn better in school. half of the children in the study eat a high protein diet while the other half eats their normal diet. the control group consists of the:

Which medical episode applies to loss of consciousness for 10 to 30 seconds, eye or muscle flutterings, and a loss of muscle tone? ?

The first process in the light-dependent reactions of photosynthesis is

What is the name of the enzyme needed for transcription?

In everyday life, a theory is an educated guess. In science a theory is

How can invasive species result in changes in other populations?

the classes are playing tug of war. Mrs. Larson's homeroom pulls with a force of 50N. Ms. Mitko's homeroom pulls with a force of 45 N in the opposite direction. What is the net force? And who won?

The synaptic cleft is the area between the a. soma of one neuron and the dendrite of another neuron. b. axon of one neuron and the dendrite of another neuron. c. axon of one neuron and the soma of another neuron. d. somas of two neurons.

When the blades of a fan move, they have mechanical energy. This mechanical energy comes from A. electrical energy flowing into the fan from the wall outlet. B. sound energy flowing into the fan from a radio. C.