Human Evolution Lesson

Environmental Science
Unit 4 Evolution

Cycle 2 | Week 6

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​Does evolution state the humans came from apes?

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​What does this chart represent?

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​What causes rapid evolution? Examples?

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​What are some examples of natural selection?

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​What type of variations do you observe in these mussels?

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​What are some resources that organisms would compete for?

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​What are some ways humans "adapt" to their surroundings?

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​What happens to the species with the better traits?

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​What kind of variations do humans have?

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​What do you think of when you see the word, "mutation?"

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​How would a mutation be a benefit? A harm? Give examples.

Multiple Choice

What is evolution?

• The loss of a species (A species dies out)

• The change of traits in species overtime

• A species preys on another species

• The change of a carnivore into an herbivore

Multiple Choice

According to evolution what happens to the frequency of traits in a population of species overtime?

• The frequency of traits randomly increases

• The frequency of traits never changes

• The frequency of advantageous traits increases overtime

• The frequency of traits decrease overtime

Multiple Choice

Which statement best describes the rate of evolution?

• It is always a slow process

• It usually is a slow process but it can occur quickly as well

• It is usually a fast process but it can occurs slowly as well

• It is always a fast process

Multiple Choice

What is a common ancestor?

• A selective pressure that led to the formation of all the species on Earth

• An organism from which all the organisms on Earth descended from

• An organism which all the organisms on Earth strive to become

• An organism that lives on a different planet as well

Multiple Choice

What is an adaptation?

• A characteristic that an organism acquires during its life

• A favorable trait, which helps an organism survive

• An unfavorable trait, which hurts the chances of survival

• A trait that makes an organism "less fit"

Multiple Choice

Which organisms are more likely to survive, reproduce and pass their traits to offspring?

• Organisms that are well-adapted to the environment

• Organisms that are not well-adapted to the environment

• Organisms that reproduce very quickly

• Organisms that are less fit

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​How do humans change the environment?

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​What was the industrial revolution?

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​What advantage do the light colored moths have against the dark colored moths?

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​What better traits would allow an organism to compete better?

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​Which one of these do humans compete for?

Multiple Choice

Which of the following is a resource that organisms compete for?

• Water

• Space

• Mates

• All of the above

Multiple Choice

Why do organism compete with each other for resources?

• There is an unlimited supply of resources

• There is a limited supply of resources

• Organisms produce more offspring than can survive

• Both B and C

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​What environment would a fossil be best preserved in?

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Multiple Choice

Fossils are an important piece of evidence for evolution because:

• They show that organisms have changed over time on Earth

• They demonstrate that organisms have become more and more complex

• They suggest there are similarities between ancient and present organisms

• All of the above

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​If organisms have the same body plan, does that mean they came from the same ancestor?

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​What organism do humans share the most DNA with?

Multiple Choice

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

Multiple Choice

According to this data, the unknown bacterial species is most closely related to: 

• Species I
• Species II
• Species III
• Species IV

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​What do all of these embryos have in common?

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​Does this mean that humans, cats, birds, and whales all shared a common ancestor?

Multiple Choice

What is this an example of?

• vestigial structures
• embryology
• homologous structures
• fossil record

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​Do butterflies, bees, and bats all share a common ancestor because they have wings?

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​What are some examples of vestigial structures? Search them up!

Multiple Choice

How do vestigial structures provide evidence for evolution?

• Shows that organisms have new and unique structures show up over time, which has no relation to the organisms they descended from

• Shows that organisms inherited structures from ancestors, since the structure has lost much or all of its original size and function over time

Multiple Choice

Which structures do NOT imply evolutionary relationships?

• Homologous structures

• Analogous structures

• Vestigial structures

• All of the structures above imply evolutionary relationships

Multiple Choice

Which structure implies "loss of function" or evolutionary divergence from a species with a past function (that is no longer needed)?

• Homologous structures

• Analogous structures

• Vestigial structures

• All of the above