Which statement describes the independent variable?

A. It is measured and recorded as data.

B. It is unchanged in the experiment.

C. It is also called the responding variable.

D. It is also called the manipulated variable.

The sediments found in a riverbed are most likely a result of which action on nearby rock?

How are blood and variations of traits related?

What does tryptophan bind to when it is present in E. coli? A. trp operon B. trp promoter C. trp operator D. trp repressor

What type of bond is found between the hydrogen and oxygen in the water molecule? Describe this bond

Scientists decide the age of different rock layers by the things that they uncover in the rock. Which of the items below could scientists use to date a layer of rock? A.) a green leaf that fell off a tree B.) an insect flying near the dig site C.

How macromolecules are broken down and used to make new molecules.

How do soils form? A. Plants cement mineral particles together to form soil. B. Plants provide organic matter and minerals to make soil. C. Erosion transports mineral particles, and plants die and decay. D.

Give three examples of places bacteria live.

How can scientists learn from observations

The minimum amount of energy the body uses at complete rest is known as the energy balance. resting metabolic rate. metabolic balance. basal metabolic rate.