According to scientific evidence, approximately when did Life first appear on Earth? - Correct Answers
3.7 million years ago
Approximately when did photosynthesis occur for the first time on Earth? - Correct Answers 2.5 billion
years ago
Look at the formula below, which was in your lecture on diffusion. What important point is illustrated by
this formula? (t=x^2/2D, t= time x= distance, D= diffusion coefficient) - Correct Answers Small increases
in the distance over which particles travel by diffusion require large increases in the time for that
diffusion to take place.
Which of the following statements about dragonflies is false? - Correct Answers Dragonflies feed on
nectar and pollen and are important plant pollinators
All of the following statements about dragonflies are true. - Correct Answers Juvenile dragonflies feed
on small aquatic critters like mosquito larvae and baby fish.
Male dragonflies attach themselves to the heads of female dragonflies while the females lay their eggs.
Dragonflies were among the first animals to evolve flight.
Adult dragonflies catch their prey during flight
What is the logic behind Drs. Bush and Schul's system for assigning the teams? - Correct Answers
Maximize diversity of experience, background, majors, etc., because this increases the likelihood of the
group members to be successful
You are standing in line for lunch in the Student center. You try to explain to one of your classmates how
much distance they should leave between you using what you learned about the size of Meganeura (the
giant dragonflies). How many Meganeuras should be able to fly side by side between two people in line
,to maintain sufficient social distancing during the Covid-19 pandemic? - Correct Answers 2 meganeuras
(Each are 3 ft)
A drop of dye has been deposited at one end of a tank of water. If you leave the tank of water alone for
a long period of time (several days) and return to it later, which statement best describes the behavior
of the dye molecules at the time you return? - Correct Answers They're still moving in the same manner
as when they were dropped into the tank.
The atmosphere of the early Earth did not contain O2. Where did the O2 eventually come from? -
Correct Answers Photosynthetic organisms released the O2.
In the figure below from your video on diffusion, a red arrow points to an orange particle. In the next
instant of time, which direction is the orange particle most likely to move? - Correct Answers All the
directions are equally likely
Which of the following statements best describes the distribution of major events in the history of life
on Earth? - Correct Answers Major evolutionary milestones tend to be more highly concentrated at the
recent end of the timeline that extends from the origin of life until today.
Danielle, a student in Bio1500, worked very hard on the lab and has a Lab average of 100%. Because she
skipped several discussions without excuses, her average in the discussion is 75%. What is the combined
Lab*Discussion score which counts for 25% of the total Bio1500 grade? - Correct Answers 75%, because
the two grades are multiplied with each other
The atmosphere of the early earth lacked molecular oxygen. If O2 had never been added to the
atmosphere, what geological phenomenon would not have occurred? - Correct Answers Most minerals
wouldn't exist
Why do cells perform photosynthesis? - Correct Answers to make carbohydrates
You observe that Potassium ions (K+) enter a cell by passing through a channel protein in the cell's
plasma membrane. Suppose you want to know whether or not the channel protein is gated. Which of
the following is the most appropriate question to ask? - Correct Answers Can K+ always flow through
the channel, or only under certain conditions?
, When do mutations occur? - Correct Answers At random times
A scientist who studies rodents is interested in the relationship between species richness, i.e. how many
different species of rodents live in an area, and rodent density, i.e. how many individual rodents live in
an area, at different elevations in the Andes mountains. She hypothesizes that the more species-rich an
area is, the more total individuals can be supported, because different species specialize on different
resources. Her data are shown in the graph below. Which of the following conclusions is best supported
by the data? (Note: if you can't see the figure, open the pdf.) - Correct Answers Species richness is
associated with rodent density at higher elevations, but other factors must influence rodent density at
low elevations.
Of the following questions about Covid-19, E would be categorized at Bloom's level evaluate, and A
would be at Bloom's level analyze. - Correct Answers E. Who should be given higher priority to receive
the vaccine: people most at risk of serious illness, or people most likely to spread the virus to others?
A. How do the 27 different proteins encoded by the viral genome interact to facilitate the virus'
reproduction?
The paper by Clapham and Karr identified a second factor besides the Oxygen content of the air that
influenced the maximum insect size during their evolutionary history. This factor is: - Correct Answers
The absence/presence of large aerial predators
Which of the following would be an example of the First Law of Thermodynamics? - Correct Answers A
dark-colored driveway becomes too hot to touch when exposed to strong sunlight in the summer.
Which of the following was NOT a consequence of the great oxygenation event? - Correct Answers
Most of the organisms that existed before the event became more efficient and they spread to new
habitats.
Darwin realized that most species produce far more offspring than is necessary to maintain a constant
population size. What is the fate of the excess individuals? - Correct Answers The more favorable forms
survive and reproduce, the others do not.
The great oxygenation event was caused by (choose the best answer): - Correct Answers Cyanobacteria
evolved photosynthesis, which released free O2 into the oceans and atmosphere for the first time
3.7 million years ago
Approximately when did photosynthesis occur for the first time on Earth? - Correct Answers 2.5 billion
years ago
Look at the formula below, which was in your lecture on diffusion. What important point is illustrated by
this formula? (t=x^2/2D, t= time x= distance, D= diffusion coefficient) - Correct Answers Small increases
in the distance over which particles travel by diffusion require large increases in the time for that
diffusion to take place.
Which of the following statements about dragonflies is false? - Correct Answers Dragonflies feed on
nectar and pollen and are important plant pollinators
All of the following statements about dragonflies are true. - Correct Answers Juvenile dragonflies feed
on small aquatic critters like mosquito larvae and baby fish.
Male dragonflies attach themselves to the heads of female dragonflies while the females lay their eggs.
Dragonflies were among the first animals to evolve flight.
Adult dragonflies catch their prey during flight
What is the logic behind Drs. Bush and Schul's system for assigning the teams? - Correct Answers
Maximize diversity of experience, background, majors, etc., because this increases the likelihood of the
group members to be successful
You are standing in line for lunch in the Student center. You try to explain to one of your classmates how
much distance they should leave between you using what you learned about the size of Meganeura (the
giant dragonflies). How many Meganeuras should be able to fly side by side between two people in line
,to maintain sufficient social distancing during the Covid-19 pandemic? - Correct Answers 2 meganeuras
(Each are 3 ft)
A drop of dye has been deposited at one end of a tank of water. If you leave the tank of water alone for
a long period of time (several days) and return to it later, which statement best describes the behavior
of the dye molecules at the time you return? - Correct Answers They're still moving in the same manner
as when they were dropped into the tank.
The atmosphere of the early Earth did not contain O2. Where did the O2 eventually come from? -
Correct Answers Photosynthetic organisms released the O2.
In the figure below from your video on diffusion, a red arrow points to an orange particle. In the next
instant of time, which direction is the orange particle most likely to move? - Correct Answers All the
directions are equally likely
Which of the following statements best describes the distribution of major events in the history of life
on Earth? - Correct Answers Major evolutionary milestones tend to be more highly concentrated at the
recent end of the timeline that extends from the origin of life until today.
Danielle, a student in Bio1500, worked very hard on the lab and has a Lab average of 100%. Because she
skipped several discussions without excuses, her average in the discussion is 75%. What is the combined
Lab*Discussion score which counts for 25% of the total Bio1500 grade? - Correct Answers 75%, because
the two grades are multiplied with each other
The atmosphere of the early earth lacked molecular oxygen. If O2 had never been added to the
atmosphere, what geological phenomenon would not have occurred? - Correct Answers Most minerals
wouldn't exist
Why do cells perform photosynthesis? - Correct Answers to make carbohydrates
You observe that Potassium ions (K+) enter a cell by passing through a channel protein in the cell's
plasma membrane. Suppose you want to know whether or not the channel protein is gated. Which of
the following is the most appropriate question to ask? - Correct Answers Can K+ always flow through
the channel, or only under certain conditions?
, When do mutations occur? - Correct Answers At random times
A scientist who studies rodents is interested in the relationship between species richness, i.e. how many
different species of rodents live in an area, and rodent density, i.e. how many individual rodents live in
an area, at different elevations in the Andes mountains. She hypothesizes that the more species-rich an
area is, the more total individuals can be supported, because different species specialize on different
resources. Her data are shown in the graph below. Which of the following conclusions is best supported
by the data? (Note: if you can't see the figure, open the pdf.) - Correct Answers Species richness is
associated with rodent density at higher elevations, but other factors must influence rodent density at
low elevations.
Of the following questions about Covid-19, E would be categorized at Bloom's level evaluate, and A
would be at Bloom's level analyze. - Correct Answers E. Who should be given higher priority to receive
the vaccine: people most at risk of serious illness, or people most likely to spread the virus to others?
A. How do the 27 different proteins encoded by the viral genome interact to facilitate the virus'
reproduction?
The paper by Clapham and Karr identified a second factor besides the Oxygen content of the air that
influenced the maximum insect size during their evolutionary history. This factor is: - Correct Answers
The absence/presence of large aerial predators
Which of the following would be an example of the First Law of Thermodynamics? - Correct Answers A
dark-colored driveway becomes too hot to touch when exposed to strong sunlight in the summer.
Which of the following was NOT a consequence of the great oxygenation event? - Correct Answers
Most of the organisms that existed before the event became more efficient and they spread to new
habitats.
Darwin realized that most species produce far more offspring than is necessary to maintain a constant
population size. What is the fate of the excess individuals? - Correct Answers The more favorable forms
survive and reproduce, the others do not.
The great oxygenation event was caused by (choose the best answer): - Correct Answers Cyanobacteria
evolved photosynthesis, which released free O2 into the oceans and atmosphere for the first time
