Biology, 14.02.2020 18:02, gonzalesrosalinda66
What was the "oxygen revolution," which took place 2.3 billion years ago?
A)The "oxygen revolution" was the rapid increase in atmospheric oxygen that took place 2.3 billion years ago, immediately preceding the origin of animals.
B)The "oxygen revolution" was the rapid increase in atmospheric oxygen that took place 2.3 billion years ago, with the origin of plants.
C)The "oxygen revolution" was the rapid increase in atmospheric oxygen that took place 2.3 billion years ago, dooming many prokaryotic groups..
Answers: 1
Biology, 22.06.2019 09:30, mckeeshallea400
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 13:00, Brittpaulina
Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?
Answers: 3
What was the "oxygen revolution," which took place 2.3 billion years ago?
A)The "oxygen...
A)The "oxygen...
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