EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Monkeys and orangutans are found on Borneo, while other islands are home to tree kangaroos but no monkeys.
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Individuals within a given species are not exactly alike.
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Animals have distinct geographic ranges, but more similar species tend to live closer to each other.
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Fossils of extinct animals turn up where similar animals live today.
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Detailed explanation-1: -Overproduction, Limited Population Growth, and the “Struggle for Existence” A key observation underlying natural selection is that, in principle, populations have the capacity to increase in numbers exponentially (or “geometrically”).
Detailed explanation-2: -Based on these simple observations, Darwin concluded the following: In a population, some individuals will have inherited traits that help them survive and reproduce (given the conditions of the environment, such as the predators and food sources present).
Detailed explanation-3: -The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.