Answer:
A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study.
The Principle of Superposition was written by <span>Nicholas Steno.</span>
Answer:
B. They are both necessary for organisms to survive
Explanation:
organisms rely on both living and non-living factors to survive.
Ex: An orange tree needs worms, birds, and insects to keep it alive and to plant more trees and it needs dirt and water.
Answer:
B cell membranes protect a cell,and cell walls do not
One reason is because they consist of many different types of tissues.
