Biology, 28.06.2019 14:00 donbright100
Coal is solid rock that began as organic material that was deposited in a swamp. the formation of coal suggests that a. geologic processes continue over millions of years. b. coal is made mostly of skeletal remains of animals. c. coal is formed from magma that has solidified over time. d. it quickly becomes petrified when water is removed.
Answers: 1
Biology, 22.06.2019 08:00
Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen
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Biology, 22.06.2019 09:30
Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these
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Biology, 22.06.2019 09:30
Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.
Answers: 1
Biology, 22.06.2019 16:00
Which topic is most likely to be studied by bo which topic is most likely to be studied by botanist? insect metamorphosis, viral infection, plant growth, animal physiology
Answers: 2
Coal is solid rock that began as organic material that was deposited in a swamp. the formation of co...
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