Which qualities should an experiment have to be replicable and valid? Check all that apply.

A valid experiment must have a subject, a falsifiable (testable) hypothesis, independent variable(s), dependent variable(s), observations, data, analysis, and a conclusion.

Explanation:

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answer: i don't know

explanation:

you need to provide a picture, otherwise i can't tell you.

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any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.