explain any three with an example to support evidence in factor of evolution
Answers
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3 examples of evolution
Peppered moth - This moth had a light coloring darkened after the Industrial Revolution, due to the pollution of the time. This mutation came about because the light colored moths were seen by birds more readily, so with natural selection, the dark colored moths survived to reproduce.
Live Birth in Three-toed Skinks - This lizard can either lay eggs or have live birth. Skinks that line in a coastal area usually lay eggs and those in cooler climates tend to give birth. Females secrete calcium for the live birth to make up for not having a shell.
Interaction between Crabs and Mussels -
Blue mussels in New England have been observed thickening their shells when they spot Asian shore crabs. This behavior only happens in mussels from a region where Asian shore crabs are endemic.
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the examples of evidence for evolution are...
1)homologous organs .
the organs which has same basic structure or same basic design but perform different functions are called homologous organs
example -
*Forelimbs of frog; human; lizard; bat or bird
2)analogous organs-
organs which have different basic structures but have similar appearance and perform similar functions are called analogous organs.
for example-
wings of insect and birds
3)fossils-
fossils are the remains or Impressions of Dead animals or plants that live in the remote past
for example- Archaeopteryx