Descent with Modification

Structures that are built the same but do not necessarily have the same function are called:

• homologous structures

• molecular homologies

• vestigial structures

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NGSS.MS-LS4-2

Which definition below applies to vestigial structures?

• structures that are built the same between two organisms that do not necessarily have the same function

• slight changes over time that give rise to new species

• structures in an organism that have lost their function due to natural selection

Where do we find the common ancestor on a cladogram?

• all the way at the top

• at the branch points (where lines connect)

• all the way at the bottom

He thought the idea of descent modification.

• Carolus Linnaeus

• Charles Darwin

• Jean-Baptiste de Lamarck

Each living species has descended, with changes, from other species over time and as a result species today look different from their ancestors.

• Theory of Descent with Modification

• Theory of Survival

• Theory of Modification

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NGSS.MS-LS4-1

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NGSS.MS-LS4-4

He proposed the Theory of Inheritance of Acquired Traits and Theory of Use and Disuse.

• Carolus Linnaeus

• Charles Darwin

• Jean-Baptiste de Lamarck

This  refers to a change over time.

• Evolution

• Gradualism

• Migration

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NGSS.MS-LS4-1

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His Theory involves natural selection.

• Carolus Linnaeus

• Charles Darwin

• Jean-Baptiste de Lamarck

Tags

NGSS.MS-LS4-4

Difference among individuals of a species are referred to as _________.

• Adaptation

• Natural Variation

• Fitness

Tags

NGSS.MS-LS4-4

The African and Asian elephants do not look exactly like their ancient ancestor the woolly mammoth. This is an example of ?

• descent with modification

• common descent

Tags

NGSS.MS-LS4-2