Cumulative Exam — Cumulative exam Answers

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Which of the following is an example of adaptive radiation?

A
One population of squirrels becomes two separate species over a long time.
B
One population of lizards forms 15 separate species over a short time.
C
One species of birds becomes better suited to its environment over time.
D
One species of fish forms when two species of fish begin to breed with each other.
3

What is the greatest issue facing society that results from the development of new applications of cell technology?

A
How the technology can be used to serve the needs of the most people.
B
How to balance an individual’s rights with meeting the needs of society.
C
How to reduce the cost of the technology to make it widely available.
D
How to develop as many disease cures as possible from the technology.
5

Pandas eat bamboo for energy. What are pandas?

A
producers
B
consumers
C
decomposers
D
autotrophs
7

Unsaturated and saturated lipids exhibit different characteristics based on their structures. Which characteristic is unique to saturated fats?

A
forms covalent, carbon-to-carbon bonds
B
is a liquid at room temperature
C
contains the maximum number of hydrogen atoms
D
consists of fatty acids and a carboxyl group
9

The graph shows the changing levels of hormones during menstruation and ovulation. What happens to hormone levels during ovulation, and why is this important?

Question illustration
A
The hormone levels increase to prepare a woman’s body to receive a fertilized egg.
B
The hormone levels decrease to prepare a woman’s body to receive a fertilized egg.
C
The hormone levels increase, and the next menstrual cycle begins with shedding of the uterine lining.
D
The hormone levels decrease, and the next menstrual cycle begins with shedding of the uterine lining.
11

During which stage of cellular respiration is glucose broken down into two molecules of pyruvic acid?

A
electron transport chain
B
glycolysis
C
Krebs cycle
D
acetyl CoA formation
15

Sophie says dolphins and sharks look very similar, so they must be related. Jake disagrees, saying DNA evidence has shown that dolphins and other aquatic mammals are actually more closely related to the ancestors of modern hippos. Who is correct using the modern system of classification?

A
Sophie is correct because dolphins look more like sharks than like hippos.
B
Jake is correct because classification is based on evolutionary relationships.
C
Both are correct because traditional and modern classifications can overlap.
D
Neither is correct because neither is taking into account both the traditional and modern systems
16

The lava released by a volcanic eruption separates two populations of a species of monkey. What does this represent?

A
biological isolation
B
geographical isolation
C
temporal isolation
D
anatomical isolation
17

Why is water considered to be abiotic?

A
because it is not part of the biosphere
B
because it came from something living
C
because it is dead
D
because it is not living and never lived
18

Which statement correctly distinguishes photosynthesis and respiration?

A
Photosynthesis occurs in animal cells and not plant cells.
B
Cellular respiration occurs in animal cells and not plant cells.
C
Photosynthesis uses chemical energy as energy source, and cell respiration uses light energy.
D
Photosynthesis uses light as energy source, and cell respiration uses chemical energy.
20

Which is a difference between the Paleozoic and Mesozoic era?

A
Animals lived in the water during the Mesozoic and on land in the Paleozoic.
B
The first birds emerged in the Paleozoic era while mammals first emerged in the Mesozoic.
C
Many different species of dinosaurs lived in the Mesozoic, but they all died off in the Paleozoic.
D
Animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic era.

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