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Jeopardy

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Jeopardy. Natural Selection. History of Life. Origin of Life. Human Origins. Taxonomy. Q $100. Q $100. Q $100. Q $100. Q $100. Q $200. Q $200. Q $200. Q $200. Q $200. Q $300. Q $300. Q $300. Q $300. Q $300. Q $400. Q $400. Q $400. Q $400. Q $400. Q $500. Q $500. Q $500. - PowerPoint PPT Presentation
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Jeopardy History of Life Origin of Life Natural Selectio n Taxonom y Human Origins Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200 Q $200 Q $200 Q $300 Q $300 Q $300 Q $300 Q $400 Q $400 Q $400 Q $400 Q $500 Q $500 Q $500 Q $500
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Page 1: Jeopardy

JeopardyHistory of Life

Origin of Life

Natural Selection

Taxonomy Human Origins

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Page 2: Jeopardy

$100 Question: History of Life

What was the Cambrian explosion?

Page 3: Jeopardy

$100 Answer: History of Life

An “explosion” of multicellular life that led to the emergence of many modern animal groups, including chordates (animals with spinal chords).

Page 4: Jeopardy

$200 Question: History of Life

What is a half-life? Is the term necessarily accurate to how radioactive isotopes decay?.

Page 5: Jeopardy

$200 Answer: History of Life

Half-life is the amount of time, on average, it takes for half the nucleus of a radioactive isotope to decay. The term represents theaverage amount of time. The times can vary due to chance.

Page 6: Jeopardy

$300 Question: History of Life

Why are relative and absolutedating often used together to determinethe age of fossils?

Page 7: Jeopardy

$300 Answer: History of Life

Both relative and absolute dating have some drawbacks. Relative dating can only be used to tell the age relative to other rock layers and fossils. Absolute dating may over- or underestimate the date due to chance.

Page 8: Jeopardy

$400 Question: History of LifeWhat kinds of organisms survive mass extinction events? Explain in terms of their rolein the food chain/web.Name and describe the causes of one mass extinction.

Page 9: Jeopardy

$400 Answer: History of LifeOrganisms that survive mass extinction events tend to be generalists that have more than one habitat and niche. Decomposers/scavengers tend to survive more than photoautotrophs, whose light may be blocked.Permian - asteriod, volcanoes, O2 levels.Creteceaus-Palogene - asteriod/dust.

Page 10: Jeopardy

$500 Question: History of Life

Explain in terms of evolution by natural selection, why some whales have hipbones but sharks do not.

Page 11: Jeopardy

$500 Answer: History of LifeWhales are descended from land mammals, as transitional fossils show. They have hipbonesbecause they once walked/swam using legs.

These hips have become vestigial as the whaleevolved, because back legs became disadvantages. Sharks are fish, so they are descended from marine creatures.

Page 12: Jeopardy

$100 Question: Origin of Life

What is a prokaryote? Name an example.

Page 13: Jeopardy

$100 Answer: Origin of Life

Unicellular organisms that lack membranesaround their DNA. Bacteria (any kind); archaea.

Page 14: Jeopardy

$200 Question: Origin of Life

What gas served as a source of carbon in the Miller-Urey experiment? What gas was NOT present on early earth?

Page 15: Jeopardy

$200 Answer: Origin of Life

CH4- MethaneO2 - Oxygen

Page 16: Jeopardy

$300 Question: Origin of Life

How did Pasteur’s experiment disprove spontaneous generation?

Page 17: Jeopardy

$300 Answer: Origin of Life

Pasteur proved that life could onlycome from other life by showing that sterilized broth would not go “bad” unless exposed to microbes.

Page 18: Jeopardy

$400 Question: Origin of Life

What were the gasses used in the Miller-Urey experiment? What was the product? What does this product tell us about how life evolved on earth?

Page 19: Jeopardy

$400 Answer: Origin of LifeA.CH4, NH3, H2, H2OB.Amino acids.C. This experiment tells us that the building b

locks of life (amino acids make proteins) can form from basic chemicals in an anoxic (no oxygen) environment.

Page 20: Jeopardy

$500 Question: Origin of Life

You are studying the possiblity of life on other planets. Describe the kind of environment you would look for on other planets as being condusive to supporting life

.

Page 21: Jeopardy

$500 Answer: Origin of LifeLook for planets that have water or traces of water, a reducing (anoxic) environment, carbon compounds, and a nitrogen source. The planet should be solid (as opposed to a gas giant), and should probably be nearenough to the sun to receive light as a source of energy.These conditions do not guarentee life (for instance, Mars doesn’t currently seem to support life), but it would mimic Earth-like conditions.

Page 22: Jeopardy

$100 Question: Natural Selection

What theory is Darwin credited with formulating?

Page 23: Jeopardy

$100 Answer: Natural Selection

The theory of evolution by natural selection.

Page 24: Jeopardy

$200 Question: Natural SelectionList the conditions necessary for evolution by natural selection to occur. Are all theseconditions needed? Why or why not?

Page 25: Jeopardy

$200 Answer: Natural SelectionInheritable variationOverproduction of offspringStruggle for existence.Differential survival and reproduction.

Yes, all the conditions are necessary forEvolution by natural selection to occur. Each is necessary; together they are sufficient.

Page 26: Jeopardy

$300 Question: Natural SelectionAn insecticide is a chemical that kills insects. Most insects are killed the first time they are exposed to an insecticide. However, some insects carry a gene that enables them to survive their first exposure to an insecticide. When these surviving insects reproduce, this gene may be inherited by their offspring. The number of insecticide-resistant insects usually increases over time because increasing numbers of offspring with this gene are able to survive and reproduce.Which process enables increasing numbers of insects to survive their exposure to an insecticide?

A. Cloning.B. Mutation.C. Natural selection.D. Genetic engineering.

Page 27: Jeopardy

$300 Answer: Natural Selection

C. Natural Selection.

Page 28: Jeopardy

$400 Question: Natural Selection

Why is “survival of the fittest” not an accurate description of evolution?

Page 29: Jeopardy

$400 Answer: Natural SelectionSurvival of the fittest doesn’t include reproduction. Also, who is fittest is context-specific - there’s no end goal in evolution. Whichever adaptation brings some advantage at a specific time in a specific environment is more likely to persist in the population.

Page 30: Jeopardy

$500 Question: Natural SelectionScientists studied four snake populations living in an island ecosystem. The table below summarizes some of the data gathered about the snake populations. All four snake species use camouflage to hide from predators. Six months after the snake study, a volcano erupted on the island and covered the area with a layer of black ash. The eruption caused many of the island rodent populations to decline. Based on this information, which snake population would be most likely to survive the effects of the volcanic eruption? WHY?

QuickTime™ and a decompressor

are needed to see this picture.

Page 31: Jeopardy

$500 Answer: Natural SelectionSpecies C - Species C can camoflague in the new environment. As a generalist (eating more than one type of food), it is more likely to survive than the snakes who eat only the island’s rodents.

Page 32: Jeopardy

$100 Question: Taxonomy and Classification

What is the correct formatting for a Scientific name? What is the scientific nameFor modern human beings? (In correct formatting!!!)

Page 33: Jeopardy

$100 Answer: Taxonomy and Classification

Genus species. Homo sapiens.

Page 34: Jeopardy

$200 Question: Taxonomy and Classification

What is the purpose of using scientific names?

Page 35: Jeopardy

$200 Answer: Taxonomy and Classification

Many organisms are called by different names indifferent parts of the world. In addition, one name (forexample “blue bird”) may be used for unrelated organisms.

Page 36: Jeopardy

$300 Question: TaxonomyBased on the chart, which of these is the best conclusion about the fish? A. Fish Species A and Fish Species B are longer than the other two fish species. B. Fish Species C and Fish Species D are faster swimmers than the other two

fish speciesC. Fish Species A and Fish Species B have more DNA sequences in common

with each other than with the other two fish speciesD. Fish Species C and Fish Species D have more diet preferences in common

with each other than with the other two fish species.

QuickTime™ and a decompressor

are needed to see this picture.

Page 37: Jeopardy

$300 Answer: Taxonomy

C. Fish Species A and Fish Species B have more DNA sequences in common with each other than with the other two fish species.

Page 38: Jeopardy

$400 Question: TaxonomyYou are a curator at a musem. You are givenA box of snake specimens to classify. AlthoughMany of the snakes look alike, they come from drastically different areas of the world. Explain how you would go about classifying the snakes and what criteria you would use.

Page 39: Jeopardy

$400 Answer: TaxonomyYou could use a dichotomous key to classify Each based on their appearance and morphology.However, you would also want to comparethem based on internal structure and DNA, sinceorganisms that live in similar environmentsoften have similar adaptations.

Page 40: Jeopardy

$500 Question: Taxonomy and Classification

Explain the evolutionary relationshipbetween tail of a porpoise (a type of whale) and the tail of a tiger shark (a type of fish).

Page 41: Jeopardy

$500 Answer: Taxonomy and Classification

They are analogous adaptations - whales andsharks DO NOT have a recent common ancestor. Both are similar, but not the samein structure (one horizontal, one vertical) andfunction, but do not have an R.C.A.

Page 42: Jeopardy

$100 Question: Human Origins

What are three characteristics that makeprimates mammals?

Page 43: Jeopardy

$100 Answer: Human Origins

-Regulation of internal body temperature-Hair-Bearing live young-Feeding young with milk

Page 44: Jeopardy

$200 Question: Human Origins

What characteristics of primates do humans exhibit? List at least 4.What characteristics of primates don’t humans exhibit? List at least 2.

Page 45: Jeopardy

$200 Answer: Human Origins

-Opposable thumbs.-Forward facing eyes.-Color vision.-Complicated social organization.

-Flexible shoulder joints/not good climbers.-Opposable large toes..

Page 46: Jeopardy

$300 Question: Human Origins

What are the two key adaptations that led to modern humans? List and describe each.Describe one hypothesis about how these adaptations emerged.

Page 47: Jeopardy

$300 Answer: Human Origins- Bipedalism - the ability to walk upright which allows for expanded use of the hands for tool use, hunting, etc. -Large brains - enhanced language centers in the brain; allowed for increasingly complex social structures

-Finding food, new worlds, attracting mates, etc. .

Page 48: Jeopardy

$400 Question: Human OriginsSelect and defend one hypothesis concerning the origin of bipedalism. As part of your support for this hypothesis, address what you see as shortcomings in at least one other hypothesis.

Page 49: Jeopardy

$400 Answer: Human Origins

Answers will vary depending on hypotheses selected.

Page 50: Jeopardy

$500 Question: Human Origins

Based on your knowledge of human evolution, will humans lose their little toes in the future?

Page 51: Jeopardy

$500 Answer: Human Origins

No. Little toes may be vestigial, but were usedprevious species of humans for balance in walking upright. Just because a structure isn’tactively used doesn’t mean it will be lost -a structure will liekly be an impediment to survival and/or reproduction if its lost.


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