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What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material
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What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
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The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping
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Biology, 22.06.2019 15:10
Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose
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Which of the following is not a product or use of tropical rainforest? a. food b. medicine c. tour...
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