The number of which base is equal to the number of thymine in a DNA molecule?

guanine

adenine

cytosine

none of the above

Scientists rely on models to represent concepts and processes in physical science. Which one of the following is a reason why scientists use models? A. Models are always colorful B. Models only show large objects. C.

There are 4 activities that require scientists to gather data - list all 4

Give three examples of a stimuli

The area of land where water is drained downhill into a body of water is known as a drainage basin

Predict what would happen to a plant with a genetic defect that produced no central vacuole.

What 6 characteristics distinguish archaebacteria from eubacteria

What is the general term for any carbohydrate monomer

Molten materials cool at different rates. Which property of a mineral does this affect? color luster crystal size crystal shape

Which substance is used by plants as a source of food? A:water B: glucose C:oxygen D:carbon dioxide

If a tree ring you are measuring is very thick, what does that mean? A. That year was cold and dry B. That year was warm and very dry C. That year was warm and wet D. None of the above