AnswersSSCR 26 Biology BCumulative Exam

Cumulative Exam — Cumulative exam Answers

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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
22
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Which best describes the movement through the nephron?

A
Blood is passed into the nephron and removed through the urethra.
B
All materials that exit the blood into the nephron are removed in the urine.
C
Some of the materials that exit the blood can be returned to the blood.
D
High quantities of sugars and water are excreted in the urine.
23

Which is the correct order of processes that occur as water moves from a lake to a cloud and then back to Earth's surface?

A
evaporation, condensation, precipitation
B
condensation, evaporation, precipitation
C
precipitation , condensation, evaporation
D
evaporation, precipitation, condensation
24

The figures below refer to a herd of water buffalo.Birth rate = 35 Death rate = 7Immigration = 4 Emigration = 17What is this population growth?

A
population increases by 41
B
population decreases by 15
C
population increases by 15
D
population decreases by 24
25

Which is an advantage of flowering plants?

A
Flowers attract insects that transport gametes.
B
Flowers give greater access to sunlight.
C
Flowers help transport water and nutrients.
D
Flowers assist plants that live in the water.
26

A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in

A
an increase in the greenhouse effect.
B
a decrease in the greenhouse effect.
C
no change in the greenhouse effect.
D
a stabilization of the greenhouse effect.
27

A weakened immune system may be caused by

A
an overproduction of lysozymes.
B
muscle disorders.
C
immunodeficiency disorders.
D
complement systems in the blood.
28

Some animals shiver as a natural, involuntary response to their environment. Shivering generates heat. This is an example of which function?

A
reducing movement to regulate body temperature
B
reducing movement to regulate blood glucose
C
maintaining homeostasis by regulating body temperature
D
maintaining homeostasis by regulating blood glucose
29

What is likely to happen to a healthy population that is experiencing exponential growth?

A
It will eventually reach its carrying capacity.
B
It will experience a population crash.
C
It will go extinct in the near future.
D
It will continue to grow exponentially indefinitely.
30

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.
31

The ulna, radius, and humerus are the three bones of the arm. The elbow is formed where these bones meet. Which is another name for the elbow?

A
joint
B
tendon
C
cartilage
D
bone marrow
32

A disease-causing bacteria successfully enters your body, making it past the first and second lines of defense. Which barrier will then act on the bacteria?

A
chemical
B
physical
C
biological
D
electrical
33

The overall population of a species decreased. What could have occurred to make this happen?

A
The immigration rate increased, while the death rate decreased.
B
The birth rate decreased, while the death rate increased.
C
The carrying capacity increased, while the immigration increased.
D
The emigration increased, while the birth rate increased.
34

When a person sees a doctor about a respiratory illness, the doctor will want to determine if the sickness is in the upper respiratory tract or the lower respiratory tract. The starting point for the lower respiratory system is the trachea.Which structures are part of the upper respiratory system? Select three options.the larynxthe bronchusthe alveolithe lungsthe pharynxthe nose

A
the larynx
B
the bronchus
C
the alveoli
D
the lungs
E
the pharynx
F
the nose
35

Which of the following best describes hair?

A
Hair is made of mostly tightly packed living cells.
B
Hair does not help control body temperature.
C
Hair growth occurs in the hair follicle.
D
Hair grows at 2.5mm a month.
36

A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist’s actions?

A
graphing
B
inference
C
observation
D
interacting
37

A microgram of skin cells.

Question illustration
A
cell
B
tissue
C
organ
D
organ system
38

Consider the phylogenetic tree.Which pair of organisms is most closely related to primates?

Question illustration
A
amphibians and rodents
B
crocodiles and amphibians
C
rodents and rabbits
D
dinosaurs and birds
39

Which of these can be found in both gymnosperms and angiosperms?

A
vascular tissue and exposed seeds
B
vascular tissue and seeds
C
flowers and vascular tissue
D
enclosed seeds and flowers
40

Which describes the primary function of the nervous system in keeping the body in homeostasis?

A
It processes the environment and sends out signals.
B
It controls movement and provides structure.
C
It physically breaks down and absorbs food.
D
It puts oxygen in the blood, which is essential for life.

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