Darwin's Three Postulates and Malthusian Principle Quiz

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What is carrying capacity (K) in a population?

The maximum capacity of humans to carry resources

The age at which organisms die due to old age

The number of organisms an environment can support (correct)

The theoretical number of offspring an individual can produce

According to the Malthusian Principle, what happens when offspring are produced in excess of carrying capacity (K)?

The excess offspring are sent to establish new populations elsewhere

The excess offspring thrive and lead to rapid population growth

The excess offspring are cared for by the stronger individuals in the population

The excess offspring must die to bring the population back into equilibrium (correct)

How does variation within populations impact the survival and reproduction of individuals?

Variation leads to rapid extinction of populations

Variation affects the ability of individuals to survive and reproduce (correct)

Variation directly increases carrying capacity (K)

Variation has no impact on survival and reproduction

Which group is more susceptible to diseases according to the text?

Babies and old individuals Signup and view all the answers

What happens to populations that exceed the carrying capacity (K) of their environment?

They face death due to scarcity Signup and view all the answers

In a normal distribution curve, which individuals are more likely to become infected with diseases?

Those at the extremes of the curve Signup and view all the answers

What does the right tail-end of the curve represent in terms of individuals' susceptibility to infection?

Individuals with a strong immune system Signup and view all the answers

Why is it mentioned that there are not many individuals with 100% resistance to the flu?

Because it comes at a cost Signup and view all the answers

What effect do selection events have on the population's innate flu resistance?

It shifts the innate resistance to the right Signup and view all the answers

What does a high r-value suggest regarding beak depth in Darwin's Finches?

There is a strong positive correlation between parental and offspring beak depth Signup and view all the answers

Why did many deep-beaked finches die as babies after a drought?

Due to the inability to process large seeds effectively Signup and view all the answers

What does the term 'fitness' refer to in evolutionary biology?

The number of offspring an organism has Signup and view all the answers

What is the main role of natural selection in evolution?

To edit inherited variation that affects reproductive success Signup and view all the answers

How do individuals contribute to evolution according to the text?

By passing down traits via reproduction Signup and view all the answers

'Hidden' variation refers to traits that are present but not expressed. What is a key implication of this phenomenon?

'Hidden' variation can be selected for if expressed in future generations Signup and view all the answers

What is the significance of inheriting trait variations according to evolutionary principles?

It plays a crucial role in natural selection and adaptation. Signup and view all the answers

Darwin's Three Postulates and Malthusian Principle Quiz

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