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Questions in biology

[Free] Which part of the Earth system contains continents?

[Free] Which component of the Earth's atmosphere is decreased due to photosynthesis?

[Free] Carbon is found in all organic molecules. True False

[Free] A statement that can be proven by observation or measurement is known as a(n) _________.

[Free] Which best completes the sentence? If something can respond to a stimulus, then it A. is a living thing. B. might be a living thing. C. is not a living thing.

[Free] When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the _______ variable.

[Free] What hereditary factors were described by Mendel?

[Free] How does low body temperature affect the blood's ability to carry dissolved oxygen?

[Free] List at least two things that scientists and explorers have in common.

[Free] Which is the best definition of a prokaryotic cell?