Match the following terms to their definitions.
1. empirical evidence
data or facts that can be observed
2. independent variable
the variable that changes in response to experimentation
3. dependent variable
the quantity in an experiment that remains unchanged
4. control
a proposed explanation for a scientific problem
5. hypothesis
the experimental factor that is changed by the scientist

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Which organisms udergo photosynthesis