What is light reaction?
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Biologists usually refer to the head of a tapeworm by what name?
What is an organ that belongs to more than one organ system?
What is concentration gradient?
Which of the following is prevented best with vaccination?
Parkinsons disease is caused by a lack of this neurotransmitter in the brain?
What are analogies for a nucleolus?
Explain the difference between prokaryotes and eukaryotes?
How burette is used?
What is living reservoirs?
What is the difference between living and non-living things?
What does acute disease mean?
Explain why does dna twist?