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EXAM:Bio 1500 Final Exam Mizzou 1|174 Questions and Answers

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EXAM:Bio 1500 Final Exam Mizzou 1|174 Questions and Answers Recognize dragonflies as formidable aerial and aquatic predators CORRECT ANSDragonflies live in water for the first two years of their life. After this adult dragonflies hunt other flying insects while they are flying themselves; th...

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174 questions and answers

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EXAM: Bio 1500 Final Exam Mizzou 1|174 Questions and
Answers
Recognize dragonflies as formidable aerial and aquatic predators CORRECT ANS-

Dragonflies live in water for the first two years of their life. After this adult dragonflies hunt

other flying insects while they are flying themselves; they cannot feed while walking or

sitting.

Identify dragonflies as ancient insects (when, what, why) CORRECT ANS-Carboniferious,

meganura, first insects to fly, selection pressures

Develop more than one hypothesis for why dragonflies were so big CORRECT ANS-

atmospheric PO2, and the lack of aerial predators

Rank the importance of team-working skills, content knowledge, communication skills,

learning skills, ... for employers and graduate school admission CORRECT ANS-1. team

work -last is content knowledge

Memorize the dates of major milestones in the history of life on earth, as indicated in the

online learning module CORRECT ANS-1. universe formed- 13.7 bya

2. earth formed- 4.5 bya

,EXAM: Bio 1500 Final Exam Mizzou 1|174 Questions and
Answers
3. moon formed- bya

4. oldest rocks formed- 3.8-4bya

5. oldest fossils (or signs of life) 3.5-3.8bya

6. Cyanobacteria- 2500 mya

7. Eukaryotes- 2000 mya

algae- 1200 mya

"snowball" ice ages- 750-600 mya

8. first animals 590 mya

9. Cambrian explosion 545-520 mya

10 carboniferous- 360-330 mya

11. first dinosaurs- 230 mya

12. birds 150 mya

13. dinosaur extinction 65 mya

14. modern humans 200,000 years ago

Recall environmental characteristics of the Carboniferous time CORRECT ANS-lots of

greenery, atmospheric PO2 was 35%

,EXAM: Bio 1500 Final Exam Mizzou 1|174 Questions and
Answers

Relate the changes of O2 levels in the atmosphere to biological events in the history of life.

CORRECT ANS-photosynthesis evolved because of cyanobacteria, at first the rocks oxidized

and used up all the oxygen. Once they reached a certain point, life exploded on earth because

of the available oxygen. Great oxygenation event caused the ozone to form, mass extinction

because excess O2. O2 reacted with methane- eventually caused snowball ice age

Recognize that the geology of earth has been dramatically changed by biology CORRECT

ANS-the development of photosynthesis and the ricks used up free O2

Describe the mechanism of diffusion at the level of single particles CORRECT ANS-random

movement

Describe the pattern observed due to diffusion and the level of many particles CORRECT

ANS-high to low concentration

Explain how the behavior of single particles explains the observed pattern at the many

particles level CORRECT ANS-they continue to move from high to low concentration until

the gradient no longer exists (reaches equilibrium)

, EXAM: Bio 1500 Final Exam Mizzou 1|174 Questions and
Answers

Explain the relationship between distance and time during diffusion and recall the important

consequence for transport in organisms by diffusion CORRECT ANS-Diffusion is only

efficient over short distances; this limits the maximum size of the organism because of its

limitation of O2 transportation

Determine whether a particular set of data would be best depicted using a scatterplot, bar

graph, or line graph CORRECT ANS-categorical= bar graph, change over time= line graph,

correlation in events= scatter

Describe the situations in which a logarithmic axis is preferable to a linear axis CORRECT

ANS-typically, a log axis is helpful when you have a large range of data

Recognize how graphs can be used to mislead people CORRECT ANS-the scales on the

graphs can be manipulated to look like there is a large difference between different variable

when there really is not

Formulate a hypothesis about the factors that allowed insects to be so big, based on the

findings of Clapham and Karr CORRECT ANS-PO2 of the atmosphere and predation

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