Which best describes the present-day universe?
opaque, expanding very slowly, stars produce h...
Chemistry, 12.07.2019 01:30 christhegreat1
Which best describes the present-day universe?
opaque, expanding very slowly, stars produce heavy elements
transparent, expanding at an accelerated rate, stars produce heavy elements
opaque, expanding at an accelerated rate, stars produce only hydrogen and helium
transparent, expanding very slowly, stars produce only hydrogen and helium
Answers: 1
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An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum
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Which order shows the levels of organization from largest to smallest? organism, organ system, cell, organ, tissue organism, tissue, organ system, organ, cell organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell
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Chemistry, 23.06.2019 09:00
Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater
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