Scientists think the earth is approximately how old?

6 1/2 billion years

4 1/2 billion years

3 billion years

2 billion years

When organisms are created through the process of

Why does a hypothesis have to be falsifiable? Question 5 options:A It must be able to pass all its tests B All of the above C It must be possible to show that it is wrong D. It can be right only if it is found to be false

Mei Ling needs to determine if a plant given to her in biology class should be classified as nonvascular or vascular. She is not allowed to cut the plant apart; she must make her classification based on observation only.

Why are fossil fuels considered nonrenewable resources? A. They take millions of years to form. B. They cannot be used to create electricity. C. They form quickly due to decaying biomass. D. They require both sunlight and water to form.

How does the genetic code of a eukaryote organism compare to that of a prokaryote organism?

How is sexual reproduction different from asexual reproduction?

Changes in the DNA sequence that affect the expression of genetic information are called A) infiltrations B) mutations C) replications D) transformations

Coral reefs in the Caribbean are sometimes damaged by hurricanes. Of the two types of coral shown, which do you think is more resistant to storm damage? Explain.

What part of the government oversees monitoring them in the environment, and what happens if a business or organization emits them at above allowable levels?

How are messages carried in neurons