Bio 1500 Final Exam
1. The early atmosphere on Earth contained only trace amounts of O2, which
now makes up about 20% of the air we breathe. Where did the O2 in the
atmosphere come from?: it was released by photosynthetic organisms
2. Suppose you earn an 80% on your lab worksheets, quizzes, and participation
scores. However, you frequently skip Discussion and end up with a Discussion
average of 50%. What will be your combined Lab and Discussion score?: 40%
3. Molecules are added to water and then the molecules move through the
water via diffusion. A concentration gradient no longer exists when:: the density
of the added molecules is the same throughout the water
4. Simple diffusion is very efficient for moving molecules around inside cells,
but it is inefficient for moving molecules from one part of the body, such as the
,brain, to another part of the body, such as the heart. Why?: Since the time for diffusion
increases with the square of the distance the molecules need to move, diffusion is too slow to move molecules around
the body.
5. Look at this image from your Online Learning video, showing blue and orange
particles. In the next moment in time, how are the two labeled particles most
likely to move? (If the image isn't visible on your screen, look at the figure
labeled 'diffusion' on the slide.): movements in all directions are equally likely
6. Place the following organisms in order with regard to their evolutionary
origin, with number 1 as the oldest and number 4 as the most recent.
dinosaurs
cyanobacteria
dragonflies (e.g. meganeura)
,first animals: first: cyanobacteria
second: first animals
third: dragonflies
fourth: dinosaurs
7. Based on scientific evidence, the earth formed approximately years
ago, and life began approximately years ago.: 4.6 bya
3.5 bya
8. Which of the following statements about dragonflies is FALSE?
, They spend multiple years living in the water.
They have primitive wing structures compared with other insects.
They are predators both as larvae and as adults.
Although they can see, they mostly communicate with sound rather than sight.
They can mate while flying: Although they can see, they mostly communicate with sound rather than sight
9. A bar graph is most commonly used when the data are:: categorical
10. In a survey conducted by the Wall Street Journal, which of the following
attributes do employers most strongly value when deciding which college
graduates to hire?: ability to work in a team
11. Diffusion is often defined as 'the movement of molecules from an area of
high concentration to an area of low concentration.' Which of the following
1. The early atmosphere on Earth contained only trace amounts of O2, which
now makes up about 20% of the air we breathe. Where did the O2 in the
atmosphere come from?: it was released by photosynthetic organisms
2. Suppose you earn an 80% on your lab worksheets, quizzes, and participation
scores. However, you frequently skip Discussion and end up with a Discussion
average of 50%. What will be your combined Lab and Discussion score?: 40%
3. Molecules are added to water and then the molecules move through the
water via diffusion. A concentration gradient no longer exists when:: the density
of the added molecules is the same throughout the water
4. Simple diffusion is very efficient for moving molecules around inside cells,
but it is inefficient for moving molecules from one part of the body, such as the
,brain, to another part of the body, such as the heart. Why?: Since the time for diffusion
increases with the square of the distance the molecules need to move, diffusion is too slow to move molecules around
the body.
5. Look at this image from your Online Learning video, showing blue and orange
particles. In the next moment in time, how are the two labeled particles most
likely to move? (If the image isn't visible on your screen, look at the figure
labeled 'diffusion' on the slide.): movements in all directions are equally likely
6. Place the following organisms in order with regard to their evolutionary
origin, with number 1 as the oldest and number 4 as the most recent.
dinosaurs
cyanobacteria
dragonflies (e.g. meganeura)
,first animals: first: cyanobacteria
second: first animals
third: dragonflies
fourth: dinosaurs
7. Based on scientific evidence, the earth formed approximately years
ago, and life began approximately years ago.: 4.6 bya
3.5 bya
8. Which of the following statements about dragonflies is FALSE?
, They spend multiple years living in the water.
They have primitive wing structures compared with other insects.
They are predators both as larvae and as adults.
Although they can see, they mostly communicate with sound rather than sight.
They can mate while flying: Although they can see, they mostly communicate with sound rather than sight
9. A bar graph is most commonly used when the data are:: categorical
10. In a survey conducted by the Wall Street Journal, which of the following
attributes do employers most strongly value when deciding which college
graduates to hire?: ability to work in a team
11. Diffusion is often defined as 'the movement of molecules from an area of
high concentration to an area of low concentration.' Which of the following
