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Analyze the changes in concentration of atmospheric carbon dioxide using historical records.

Recent Trends:

▪       Atmospheric carbon dioxide concentrations have been measured at the Mauna Loa atmospheric observatory in Hawaii from ...

ZK
4521 Views

Draw and label a diagram of the carbon cycle to show the processes involved.

Carbon is one of the main elements found in all organic molecules including carbohydrate, protein and lipid.

 

Processes:

·      Ph...

ZK
15034 Views

Explain the energy flow in a food chain.

▪       Energy enters most communities as light, where it is absorbed by autotrophs (e.g. plants) and converted into chemical energy via photosynthesis

ZK
22291 Views

Discuss the potential benefits and potential harmful effects of one example of genetic modification.

Example: The transfer of a gene that codes for a protein called Bt toxin from the bacterium Bacillus thuringiensis to maize crops. (i.e. Bt Corn)

 

Potential B...

ZK
12936 Views

State two examples of current uses of genetically modified crops or animals.

Genetically modified organism (GMO) is an organism containing a transplanted gene.

 

Factor IX: A human clotting factor is produced by gene...

ZK
6391 Views

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