Patterns of Evolution
Biology ⇒ Evolution and Diversity
Patterns of Evolution starts at 10 and continues till grade 12.
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Context: A species of insect evolves resistance to a pesticide, and over time, the plant it feeds on evolves new chemical defenses. What pattern of evolution is illustrated here?
Context: Two species of birds live on different islands but have evolved similar beak shapes due to eating similar types of seeds. What pattern of evolution does this represent?
Context: Two species of frogs living in the same area develop different mating calls to avoid interbreeding. What pattern of evolution does this represent?
Describe how adaptive radiation can lead to increased biodiversity on an island.
Context: A species of insect evolves resistance to a pesticide, and over time, the plant it feeds on evolves new chemical defenses. What pattern of evolution is illustrated here?
Context: Two species of birds live on different islands but have evolved similar beak shapes due to eating similar types of seeds. What pattern of evolution does this represent?
Context: Two species of frogs living in the same area develop different mating calls to avoid interbreeding. What pattern of evolution does this represent?
Context: A flowering plant species is introduced to a new continent where it encounters a novel pollinator. Over generations, the plant evolves a new flower shape that matches the pollinator’s feeding structure. What pattern of evolution does this scenario exemplify, and what evidence would support your conclusion?
Which of the following best describes convergent evolution? (1) The process by which unrelated organisms independently evolve similarities when adapting to similar environments (2) The process by which related species become more different over time (3) The process by which a single species evolves into several different forms (4) The process by which organisms lose traits over time
Which of the following best describes the process of divergent evolution? (1) Two unrelated species develop similar traits (2) Two related species become more different over time (3) Two species evolve in response to each other (4) A species remains unchanged over time
Which of the following best illustrates parallel evolution? (1) The independent evolution of similar traits in closely related species (2) The evolution of different traits in unrelated species (3) The extinction of a species (4) The evolution of a single trait in a single species
Which of the following is an example of adaptive radiation? (1) The development of antibiotic resistance in bacteria (2) The diversification of Darwin’s finches on the Galápagos Islands (3) The evolution of wings in bats and birds (4) The loss of eyesight in cave-dwelling fish
Fill in the blank: The evolution of similar traits in distantly related species due to similar environmental pressures is called __________ evolution.
Fill in the blank: The independent evolution of similar traits in species that share a recent common ancestor is called __________ evolution.
Fill in the blank: The process by which a single ancestral species rapidly diversifies into a variety of forms adapted to different environments is called __________.
Fill in the blank: The process by which a single species evolves into several different forms that live in different ways is called __________.
True or False: Adaptive radiation always results in the extinction of the original species.
True or False: Adaptive radiation can occur after a mass extinction event.
True or False: Allopatric speciation is a result of divergent evolution.
True or False: Analogous structures provide evidence for common ancestry.
