The Environment and Change Over Time

Which process forms fossils?

• variation

• adaptation

• mineralization

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S7L5

Arjun, Olivia, and Ava are studying paleontology and they come across a situation where a certain type of fossil suddenly disappears from the fossil record. This could be evidence of what?

• extinction

• camouflage

• carbonization

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S7L5

Homologous body parts do NOT always have similar

• locations

• functions

• structures

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S7L5

Patterns in the fossil record show that species on Earth

• change over time

• adapt to all environmental changes

• appear on Earth independent of existing species

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S7L5

Arjun, Abigail, and Mia are studying different species of birds in their biology class. They are trying to determine how closely related two species are. What should they primarily consider?

• how much the two species compete for food

• how closely the two species live to one another

• how recently the two species shared a common ancestor

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S7L5

Match the definition with the correct term.

• molecular biology

• studying relationships between organisms by

  comparing their embryos

• comparative anatomy

• studying relationships between organisms by

  comparing their genes and proteins

• embryology

• studying relationships between organisms by comparing their structures

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S7L5

Through natural selection, a helpful ​ (a)   can lead to an adaptation that can be classified as ​ (b)   , ​ ​ (c)   , or ​ (d)   .

• variation
• structural
• behavioral
• functional
• emotional
• biological
• environmental
• psychological
• genetic

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S7L5

​ (a)   is an example of a functional adaptation.

• A change in body temperature during hibernation
• Camouflage
• Hunting at night

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S7L5

Hunting at night is an example of a ​ (a)  

• behavioral adaptation
• structural adaptation
• functional adaptation

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Mimicry and camouflage are examples of (a)  

• structural adaptation
• behavioral adaptation
• genetic adaptation

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S7L5