Variation Flashcards
What are examples of discontinuous variation?
Sex and blood group
What are examples of continuous variation?
Height and weight
Continuous variation can be represented on A) a line graph, B) a bar or pie chart
A line graph
Which variation can be represented on a bar or pie chart?
Discontinuous variation
Why do animals within the same species vary?
Because of their slightly different genes
What sort of differences might there be in animals within the same species?
They might run faster or slower.
What are the benefits to differences within the same species?
The genes which make the species stronger or faster will be passed on to the offspring and make it more refined and better suited to it’s environment.
True or false - The best adapted organisms do not survive.
False
True or false - genes pass on characteristics.
True
True or false - the gene pool changes over time.
True
True or false - camouflaged animals may be more likely to survive.
True
The difference in characteristics between individuals of the same species is called?
Variation
What is a species?
A group of organisms that can interbreed to have fertile offspring such as humans, dogs and goldfish.
True or false - Variation is small changes in living organisms.
True
What is the variation that is passed from parents to offspring?
Inherited variation
What is environmental variation?
A result of differences in the surroundings or what an individual does.
What does variation do?
Helps a species to survive by causing genetic and physical differences.
What would be a danger to individuals of the same species being genetically identical?
They would be vulnerable to the same diseases which could wipe out an entire species.
What are the 3 causes of variation?
Genetic variation, Environmental variation, Genetic and environmental variation.
What are some examples of Continuous variation?
Height, weight, Arm span
What are some examples of Discontinuous variation?
Blood group, Eye colour, Hand used to write with.
