Biology, 27.11.2020 18:30 joshuag9047
Describe an investigation you could do to see if
germinating seeds give off carbon dioxide. Include a
labelled diagram of your apparatus, a control, and explain
what you think your results would be.
Answers: 3
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
Answers: 2
Biology, 21.06.2019 17:50
How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes
Answers: 3
Biology, 22.06.2019 12:00
What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not
Answers: 1
Describe an investigation you could do to see if
germinating seeds give off carbon dioxide. Include...
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