Ozone located in the troposphere is .
A. considered a pollutant
B. beneficial to living organ...
Biology, 20.09.2020 07:01 safi30360oz0c34
Ozone located in the troposphere is .
A. considered a pollutant
B. beneficial to living organisms
C. higher in concentration than ozone in the stratosphere
D. all of the above
Answers: 1
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 09:30
Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from
Answers: 3
Biology, 22.06.2019 14:30
Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.
Answers: 2
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