Biology
Which of the following is not true of colour blindness?

Red-green colour blindness is the most common type of colour blindness
For some people, it might be difficult to recognize colours of traffic lights and signs
Colour blind people learn to rely on shapes, patterns, and positions of signs and signals
A colour blind person cannot see any colours

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Biology
A genus can best be defined as

A taxon comprised of classes
A taxon composed of one or more species and a classification level lying below family
The most specific taxon
A taxon composed of families

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