Question

name__ date__ types of evolution directions: read each description below and choose which of the four types of evolution it is by placing an x under the correct answer for each description. description convergent evolution divergent evolution coevolution punctuated equilibrium gradualism 1 in the ocean surrounding antarctica, there are fish that survive the cold water by using a molecule made of glycoproteins that circulates the blood and keeps it from freezing. certain kinds of worms that live in the arctic ocean also make antifreeze proteins that help them live in icy water. 2 in the fossil record, horse fossils show steady change over a long period of time. 3 the galápagos tortoises share a common ancestor but have necks of different lengths to best reach different food in their environment. 4 this kind of evolution is proven by dna analysis and results in organisms with different ancestors becoming more alike as they adapt to similar environments. 5 abrupt appearance of new species in the fossil records 6 ants are the correct size and weight needed to open the flowers for the peony plant. the peony plant provides food for the ant and the ant fertilizes the peony’s flowers 7 finches on the galápagos islands have different shaped beaks reflecting their distinct diets on the various islands which three types of evolution above start with a common ancestor?

Explanation:

1. Convergent evolution as different organisms (fish in Antarctica and worms in Arctic) develop similar anti - freeze mechanisms independently.
2. Gradualism as horse fossils show steady change over time.
3. Divergent evolution as Galápagos tortoises with a common ancestor have different neck lengths due to different environmental needs.
4. Convergent evolution as organisms with different ancestors become more alike in similar environments.
5. Punctuated equilibrium as it describes the abrupt appearance of new species in the fossil record.
6. Coevolution as ants and peony plants have a mutually - beneficial relationship and evolve in response to each other.
7. Divergent evolution as finches on Galápagos islands with a common ancestor have different beak shapes for different diets.

For the additional question, divergent evolution examples (3 and 7) start with a common ancestor, and also the Galápagos tortoises in 3 are an example.

Answer:

1. Convergent evolution
2. Gradualism
3. Divergent evolution
4. Convergent evolution
5. Punctuated equilibrium
6. Coevolution
7. Divergent evolution

Which three types of evolution above start with a common ancestor? Divergent evolution (from 3, 7)