Comparative Anatomy

_____________ Evolution occurs when unrelated organisms evolve traits, structures, or morphologies that carry out the same function. An example is insect flight and bird flight.

• Convergent

• Parallel

• Divergent

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connective tissue softer than bone - it's more flexible

• ligament

• tendon

• cartilage

• flexor

connective tissue; connects bone to bone

• tendon

• ligament

• flexor

• extensor

skeletal muscle; think about moving

• involuntary muscle

• voluntary muscle

• smooth muscle

• cardiac muscle

involuntary muscle tissue

• smooth muscle

• cardiac muscle

• voluntary muscle

• locomotion

ability to move from place to place

• sessile

• locomotion

• motile

• flexors

A trait or change in lifestyle that helps a plant or animal survive in its environment

• adaptation

• evolution

• homologous

• vestigial

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Shows how different groups of organisms have changed over time.

• fossil record

• homologous structures

• embryology

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Body part you have that use to have a purpose but now has little or no function

• vestigial organ

• embryology

• homologous structures

What is Thomas Huxley best known for in the field of science?

• His advocacy of Darwin's theory of evolution

• His work on electromagnetism

• His discovery of the structure of DNA

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