Biology, 17.11.2020 17:20 jeffhuffle17
Two models of molecules are shown. Two models of molecules. One on left is made of one carbon and one oxygen atom. One on right is made of one carbon and two oxygen atoms. What is true about the molecules shown in the models? A. They are molecules of the same substance. B. They are molecules of two substances with the same properties. C. They are molecules that join together. D. They are molecules containing the same kind of atoms.
Answers: 3
Biology, 21.06.2019 15:20
Sydney drew a flow chart to illustrate the nitrogen cycle.which labels best complete the flow chart? x: producers undergo photosynthesis.y: nitrogen compounds are released into the air.x: nitrogen compounds are released into the air.y: producers undergo photosynthesis.x: free nitrogen is in the atmosphere.y: producers absorb nitrogen compounds through their roots.x: producers absorb nitrogen compounds through their roots.y: free nitrogen is in the atmosphere.
Answers: 3
Biology, 21.06.2019 18:00
Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence
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Biology, 21.06.2019 20:00
How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex
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Biology, 21.06.2019 21:30
Which of these best describes wde by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm
Answers: 1
Two models of molecules are shown. Two models of molecules. One on left is made of one carbon and on...
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