What procedures are at the core of the scientific method

State a hypothesis.

Identify the relationship

to be tested.

Decide on the dependent

and independent variables.

Identify and eliminate any

confounding variables.

Test the hypothesis  

with an investigation.

Analyze the data.

Come to a conclusion

based on the data.

Explanation:

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms