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INB 84: CFA Review: Patterns in and Evidence for Evolution

Across
Some organisms have features that have different functions, but similar structures. One example is the forelimb of humans, dogs, birds, and whales.
Process in which two or more species evolve in response to changes in each other
Plant develops toxic chemicals to prevent herbivores from eating it.
Shows early embryos of many organisms are similar, giving evidence for a common ancestor. This is called ___
Different species must often adapt to similar _______
Comparing this provides the best evidence that two organisms share a common ancestor.
Monarch butterflies only lay their eggs on milkweed plants
When species evolve, these can been seen over time
Down
Plover birds pick off food from between teeth of crocodiles; crocs benefit from cleaning.
Interaction between two different organisms living in close physical association, typically to the advantage of both
Evolution towards similar characteristics in unrelated species (e.g. wings in different species)
Closely related species evolve in different directions in different environments, becoming less similar (e.g. Galapagos finches)
Whale flipper and shark fin
Leaf-cutter ants grow on a species of fungus for food.
Evolution through natural selection is NOT _______
Modern whales lack hind limbs, but have tiny bones in their skeletons which are the remnants of pelvic and leg bones. These structures are __