Introduction to Variations Within Species

Differences between members of the same species are called

• intraspecific variations

• continuous variations

• interspecific variations

• discontinuous variations

Which of the following is NOT an example of environmental variation?

• Hair colour

• Weight

• Shoe size

• Blood type

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Which of the following is/are example of Inherited variation? (Select all that applies)

• Eye colour

• Blood type

• Skin colour

• Accent

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Which of the following is an example of discontinuous variation?

• Weight
• blood type
• height
• Hand span

Which of the following is an example of continuous variation?

• hair colour
• height
• eye colour
• Gender

What type of graph is usually used to represent discontinuous variation?

• Bar chart

• Pie chart

• venn diagram

• line graph

Continuous variation is usually influenced by what?

• the environment only
• Inheritance only 
• Inheritance and the environment
• none of the above

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Discontinuous variation is influenced by which?

• The environment only
• Inheritance only
• The environement and inheritance
• none of the above

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What shape graph do you see for many examples of continuous variation?

• A straight line downwards
• A straight line upwards
• A bell-shape
• A flat line

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What is Variation?

• Difference between organisms caused by genetics.

• Difference between organisms caused by the environment.

• Difference between organisms caused either by genetics or the environment.

• Difference between organisms caused by radiation

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