Biology

Biology, 25.06.2019 11:00, 182075

Which of the following best summarizes the reason living things depend on oxygen? question 6 options: oxygen is an element of water. oxygen is involved in protein production. oxygen is used during cellular respiration. oxygen is necessary for digestion.

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Biology, 14.07.2019 00:30, amanuelwold

Scientists have believed for many years that less oxygen is dissolved in deeper layers of the ocean compared to shallower layers. what experimental method would best test this hypothesis, and why? send a robot to measure how much oxygen is dissolved in ocean water at various depths, because the amount of oxygen dissolved in water changes with pressure add oxygen into a sample of ocean water and measure the percentage of oxygen that stays dissolved, because this allows you to control how much oxygen is added capture fish from various ocean depths and measure how much oxygen is found in their tissues, because this most directly measures the oxygen available to living systems grow photosynthetic plants at various ocean depths and determine how much oxygen those plants, produce, because all oceanic oxygen has to come from plants

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Biology, 19.07.2019 15:00, desikayla2013

How do fish obtain oxygen? a- oxygen diffuses across their skin. b- their body cells break down water molecules (h2o) and release the oxygen. c- they inhale oxygen at the surface of the water. d- they take in oxygen gas dissolved in the water through their gills.

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Biology, 24.07.2019 00:30, pennygillbert

Why is oxygen not essential to all living things? oxygen is used for breathing by only animals oxygen is a waste product of photosynthesis so is not needed by plants oxygen is harmful to plants and bacteria oxygen is harmful to fungi and algae

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Biology, 26.07.2019 06:00, anggar20

Which of the following best summarizes the reason living things depend on oxygen oxygen is used during cellular respiration oxygen is an element of water, oxygen is necessafry for digestion, oxygen is involved in protien production

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