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All animals have a backbone, have a true tissue, are heterotrophic, share a common ancestor!

Select the correct answer. Which term defines a well-tested, scientifically supported statement that explains how something works? A. hypothesis B. law OC. observation D. theory

What does a scientific theory do

Which renewable energy is used quite frequently in the u. s. and canada

Rh incompatibility between a sensitized Rh + woman and an Rh - fetus can cause hemolytic disease of the newborn. True False

What would cause a person to have headaches from the sun only when not wearing a hat?

When in the cell cycle would you find sister chromatids?

What are the four conditions able to see an object?

While the bones of this joint may fracture, they rarely become dislocated. The articular capsule and accessory ligaments of this joint make it one of the strongest structures in the body.

A 5-year-old girl catches the flu from a friend at day care after the friend sneezed and wiped mucus on a toy that the girl played then with. In this case, what is the portal of exit in the chain of infection?