BIO 1500 FINAL MIZZOU TEST PAPER FULL
QUESTIONS AND SOLUTIONS VERIFIED
PREPARATION MATERIAL
●● Identify dragonflies as ancient insects (when, what, why)
Answer: Carboniferious, meganura, first insects to fly, selection
pressures
●● Develop more than one hypothesis for why dragonflies were so big
Answer: 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
Answer: 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
Answer: 1. universe formed- 13.7 bya
2. earth formed- 4.5 bya
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
Answer: lots of greenery, atmospheric PO2 was 35%
●● Relate the changes of O2 levels in the atmosphere to biological
events in the history of life.
Answer: 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
Answer: the development of photosynthesis and the ricks used up free
O2
●● Describe the mechanism of diffusion at the level of single particles
Answer: random movement
●● Describe the pattern observed due to diffusion and the level of many
particles
Answer: high to low concentration
●● Explain how the behavior of single particles explains the observed
pattern at the many particles level
Answer: they continue to move from high to low concentration until the
gradient no longer exists (reaches equilibrium)
●● Explain the relationship between distance and time during diffusion
and recall the important consequence for transport in organisms by
diffusion
Answer: 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
Answer: 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
Answer: typically, a log axis is helpful when you have a large range of
data
●● Recognize how graphs can be used to mislead people
Answer: 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
Answer: PO2 of the atmosphere and predation
●● Describe and interpret Figure one of Clapham and Karr
Answer: The y axis on the top part is the length of the insects' wings in
millimeters. The y-axis on the bottom graph shows the atmospheric
environmental oxygen concentrations. The x-axis on the top labels the
species as well as the time periods, while the x-axis on the bottom shows
the age in million years. The black bars represent more than 50
measurements that occurred in that "bubble," this is to indicate that a lot
QUESTIONS AND SOLUTIONS VERIFIED
PREPARATION MATERIAL
●● Identify dragonflies as ancient insects (when, what, why)
Answer: Carboniferious, meganura, first insects to fly, selection
pressures
●● Develop more than one hypothesis for why dragonflies were so big
Answer: 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
Answer: 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
Answer: 1. universe formed- 13.7 bya
2. earth formed- 4.5 bya
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
Answer: lots of greenery, atmospheric PO2 was 35%
●● Relate the changes of O2 levels in the atmosphere to biological
events in the history of life.
Answer: 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
Answer: the development of photosynthesis and the ricks used up free
O2
●● Describe the mechanism of diffusion at the level of single particles
Answer: random movement
●● Describe the pattern observed due to diffusion and the level of many
particles
Answer: high to low concentration
●● Explain how the behavior of single particles explains the observed
pattern at the many particles level
Answer: they continue to move from high to low concentration until the
gradient no longer exists (reaches equilibrium)
●● Explain the relationship between distance and time during diffusion
and recall the important consequence for transport in organisms by
diffusion
Answer: 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
Answer: 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
Answer: typically, a log axis is helpful when you have a large range of
data
●● Recognize how graphs can be used to mislead people
Answer: 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
Answer: PO2 of the atmosphere and predation
●● Describe and interpret Figure one of Clapham and Karr
Answer: The y axis on the top part is the length of the insects' wings in
millimeters. The y-axis on the bottom graph shows the atmospheric
environmental oxygen concentrations. The x-axis on the top labels the
species as well as the time periods, while the x-axis on the bottom shows
the age in million years. The black bars represent more than 50
measurements that occurred in that "bubble," this is to indicate that a lot
