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The Theory of Evolution states that organisms change (evolve) over a long time (from simple life forms) due to natural selection.
Natural Selecti...
DNA is a double helix. Consisting of two strands, which are made up of bases A T C and G
Complementary base pairing occ...
No, they are not the same (although they do both involve the respiratory system!). The key differences:Breathing is the process of moving air in and out of the lungs - like when you take a bre...
Primary - The sequence of amino acids in the Protein, defined by the DNA sequence coding for the protein.
Secondary - Any folding or coiling within the protein which are stabilised by hy...
1. Fertilisers are washed into waterways by rain or irrigation.
2. The increased availability of nutrients causes aquatic plant life to grow rapidly.
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