Which characteristic describes a mature river?

A. Has a steep stream gradient

B. Has many tributaries

C. Is near headwaters

D. Is in a straight and narrow V-shaped channel

Why cant we see the cells of us with our eyes

What are four different properties of magnets

What results from gas particles not having a strong attraction to one another? Select all that apply.

Prokaryotes reproduce rapidly and this allows genetic variation to spread quickly through a population. what two processes can create variations in prokaryotic populations?

What allows children to master the ability to read? decreased myelination of the limbic system increased neurotransmitter activity selective attention massive interconnections in the brain?

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