[OU.04]The theories on the origin of the universe cannot change because of new discoveries

may change because of new investigations

will weaken scientific knowledge if they change

will become laws if they do not change

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

What is thought to have caused the mass extinction at the end of the cretaceous period?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?