What is divergent evolution?

What is divergent evolution?

What Is Divergent Evolution? Divergent evolution occurs when a population of animals or plants is split into two groups by a geographic barrier (for instance, a body of water or a migration to a new area), causing each group to develop different traits under their respective selective pressures and natural selection.

What’s an example of artificial selection?

Dog breeding is another prime example of artificial selection. Artificial selection has long been used in agriculture to produce animals and crops with desirable traits. The meats sold today are the result of the selective breeding of chickens, cattle, sheep, and pigs.

How can the evolution of one species affect the evolution of another?

No species exists in a vacuum; every form of life on Earth interacts over time with other organisms, as well as with its physical environment. For that reason, the evolution of one species influences the evolution of species with which it coexists by changing the natural selection pressures those species face.

Are birds and bats divergent evolution?

Bird, bat, and pterosaur wings are analogous structures, but their forelimbs are homologous, sharing an ancestral state despite serving different functions. The opposite of convergence is divergent evolution, where related species evolve different traits.

Are bats and butterflies convergent evolution?

Convergent evolution. A bat darting out of its cave at twilight. In the case of bats, birds and butterflies — none of which share a common ancestor that flew — they all “converged” on the ability of flight as a useful trait in response to environmental stimuli and biological goals.

What are 4 types of evolution?

Groups of species undergo various kinds of natural selection and, over time, may engage in several patterns of evolution: convergent evolution, divergent evolution, parallel evolution, and coevolution.

What is convergent evolution Khan Academy?

Instead, some physical similarities are analogous: they evolved independently in different organisms because the organisms lived in similar environments or experienced similar selective pressures. This process is called convergent evolution. (To converge means to come together, like two lines meeting at a point.)

How are convergent and divergent evolution different?

Whereas convergent evolution involves unrelated species that develop similar characteristics over time, divergent evolution involves species with a common ancestor that change to become increasingly different over time.

How does artificial selection contribute to evolution?

Farmers and breeders allowed only the plants and animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce. This is evolution through artificial selection.

What is an evolutionary theorist?

the theory of evolution by natural selection of those species best adapted to survive the struggle for existence. a modern theory based on Lamarckism that states that acquired characteristics are inherited.

What are examples of evolution?

Examples of Evolution in Biology and Beyond

• Peppered Moth. This light-colored moth became darker after the Industrial Revolution due to the pollution of the time.
• Brightly Colored Peacocks.
• Darwin’s Finches.
• Flightless Birds.
• Pesticide Resistant Insects.
• Blue Moon Butterfly.
• Deer Mouse.
• Mexican Cavefish.

What kind of nectar does a bat Eat?

The flowers that are visited by bats are typically: Copious dilute nectar. Bats feed on the insects in the flowers as well as on the nectar and flower parts, such as calabash, sausage tree, areca palm, kapok tree, banana. Over 300 species of fruit depend on bats for pollination.

How did the adaptation of bat pollination evolve?

Adaptation to pollination by bats has evolved independently many times from a variety of ancestral conditions, including insect-, bird- and non-volant mammal-pollination. Bat pollination predominates in very few families but is relatively common in certain angiosperm subfamilies and tribes.

What kind of flowers do bats feed on?

Bat Flowers. The flowers that are visited by bats are typically: Bats feed on the insects in the flowers as well as on the nectar and flower parts e.g. – calabash, sausage tree, areca palm, kapok tree, banana. Over 300 species of fruit depend on bats for pollination.

What kind of fruits are pollinated by bats?

These fruits include: 1 mangoes, 2 bananas, and 3 guavas.