Biology, 20.03.2020 01:59 CauseWhyNot6235
Earths atmosphere is moderately dense and is composed of 78 percent oxygen and 21 percent nitrogen true or false
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Biology, 21.06.2019 16:00
Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove
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Biology, 21.06.2019 21:20
Which codon is the code for the amino acid histidine (his)?
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Biology, 22.06.2019 05:00
Idon’t know the answer and i’ve been stuck on it for a while now skskskskks
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Biology, 22.06.2019 08:00
Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.
Answers: 1
Earths atmosphere is moderately dense and is composed of 78 percent oxygen and 21 percent nitrogen t...
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