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Biology - Evolution
Before the Industrial Revolution most peppered moths were pale.

Biology - Evolution

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High school science looks at evolution in depth. There are several aspects to this, such as competition and variation. This quiz looks at Charles Darwin's theory of evolution and the process of natural selection in particular.

1.
Before the Industrial Revolution most peppered moths were pale, but there was a mutant form which had dark colouration - the black peppered moth. During the Industrial Revolution, in cities the mutant black peppered moth became more numerous. Which of the following statements could explain why?
White peppered moths are bigger
Dark peppered moths are bigger
White peppered moths are easier to see on dirty tree bar
Dark peppered moths are easier to see on dirty tree bark
This question is about camouflage. Air pollution from the Industrial Revolution made trees near factories dirty. Factories were built in urban areas so the first two options can be dismissed as size is not related to the color mutation. Even if you haven't come across peppered moths in your lessons, you should be able to work out that white ones would poorly camouflaged against a dirty tree bark meaning that they are more likely to be spotted and eaten by predators
2.
Why did Lamarck's theory of evolution fall out of favor?
It can't explain why simple organisms continue to exist
It is based on genetic variation
It is older than Darwin's and therefore out of date
Scientists forgot about it
According to Lamarck's theory, evolution creates more and more complexity therefore simple life like bacteria and amoeba should not exist
3.
Which of the following is true?
Environmental variation is inherited
Variation can not be inherited
Genetic variation is inherited
Genetic variation is not inherited
Variation is carried by the genes and is therfore inherited. Environmental variation occurs after birth and is not recorded on the genes so cannot be passed from parent to offspring
4.
What is the timescale needed for evolution according to Darwin's theory?
A few years
A few hundreds of years
Several thousand years
Millions of years
Darwin believed that evolution took place very slowly in complex plants and animals. It is possible to see evolution happening over much shorter time periods when you look at simple organisms like bacteria
5.
Which one of the following provides strong evidence for Darwin's theory of evolution?
Fossils
Living creatures
Records made by naturalists in the 19th Century
Books
Human fossils from 7 million years ago have been found. Early humans are called 'hominids' and were smaller than modern humans, with much smaller brains but they walked upright on two legs
6.
Which organisms are most likely to survive long enough to reproduce?
Ones which are badly adapted to their environment
Ones which are well adapted to their environment
The biggest ones
The smallest ones
Well adapted individuals survive longer and will have more offspring
7.
Which of the following is an example of rapid evolution caused by mutation?
Dinosaurs
Dogs
Antibiotic resistant bacteria in hospitals
Humans
Normally, evolution occurs slowly over a period of millions of years. Most antibiotic resistant bacteria have evolved since the 1950s when antibiotics were first widely used
8.
Why is the evolutionary record of the horse so well documented?
They started small and evolved to become larger
There is a very good fossil record
It is a popular animal
Only one scientist has ever worked on it
This question is testing whether or not you understand that one of the strong arguments for Darwin's theory is that evolution can be seen by looking at fossils
9.
According to Darwin, new species evolve by which process?
Unnatural selection
Artificial selection
Premium selection
Natural selection
Negative characteristics that are passed on to offspring gradually disappear from the gene pool as the organisms that carry them do not survive long enough to have many offspring
10.
Darwin's theory was not widely accepted when he published it in 1859. Which one of the following is not a reason why scientists at the time rejected it?
It conflicted with religious views
Darwin had little evidence
Other scientists were jealous of Darwin
No-one knew how variation and inheritance worked
Darwin was ridiculed by the press and some of the leading scientists of the time as they did not like the idea that they were descended from the apes
Author:  Kev Woodward

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