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Biology, 22.06.2019 01:30
Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.
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Biology, 22.06.2019 08:00
Explain why biological control methods are generally environmentally superior to chemical pest control methods.
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Biology, 22.06.2019 08:30
Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.
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Biology, 22.06.2019 09:00
Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia
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Which one is NOT true? It produces sugar by fixing carbon dioxide.
It produces water as a product.<...
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