Question 1

Environmental air temperature can fluctuate many degrees during the course of a day. A human's body temperature

Accepted Answer

A)   can also fluctuate many degrees.
B)   is lowered by shivering.
C)   must be maintained within a range of a few degrees.
D)   is not maintained internally but fluctuates with the air temperature.
E)   is raised by sweating and dilation of blood vessels in the skin. Body temperature regulation is the primary example used to explain both homeostasis and negative feedback loops. It, along with certain other characteristics, is maintained within a narrow range.F) B) and D)
G) D) and E)

Question 2

In the figure shown here, "2" represents _____, which moves)  into the blood from the digestive tract.

Accepted Answer

A)   nutrients
B)   oxygen
C)   metabolic wastes
D)   carbon dioxide
E)   indigestible food particlesF) C) and D)
G) A) and B)

Question 3

White blood cells are different from red blood cells in that white blood cells

Accepted Answer

A)   have nuclei.
B)   carry oxygen.
C)   contain hemoglobin.
D)   are actually cell fragments.
E)   are the most plentiful type of cell in blood. White blood cells are less plentiful than red blood cells and are involved in fighting infections. Unlike red blood cells, they have nuclei, and unlike platelets, they are whole cells.F) B) and D)
G) C) and E)

Question 4

The stimulus in this scenario is

Accepted Answer

A)   the increase in carbon dioxide concentration in Jane's blood while she is holding her breath.
B)   the impulses sent to the medulla oblongata.
C)   the more frequent inhalations and exhalations.
D)   the decrease in carbon dioxide concentration as she breathes more forcefully.
E)   Jane diving into the swimming pool. The stimulus is whatever has deviated from within the normal range.F) A) and D)
G) B) and E)

Question 5

If damaged, which tissue type will not be able to conduct an impulse?

Accepted Answer

A)   nervous
B)   epithelial
C)   connective
D)   muscular
E)   columnar Nervous tissue is capable of receiving a stimulus and conducting the impulse to another nervous tissue. If it is damaged, it may lose the ability to receive or conduct impulses.F) A) and D)
G) C) and D)

Question 6

Most metabolic wastes leave the body through the production of _____ by the _____.

Accepted Answer

A)   urine; urinary system
B)   feces; digestive system
C)   carbon dioxide; respiratory system
D)   urine; digestive system
E)   carbon dioxide; urinary system Metabolic wastes are produced through the chemical reactions which occur in the body, for example, the breakdown of enzymes. In order to maintain homeostasis, these wastes must be removed. The kidneys filter the blood, producing urine. As urine leaves the body, the wastes go with it.F) A) and C)
G) B) and D)

Question 7

Movement of body parts directly requires the

Accepted Answer

A)   muscular system and skeletal system.
B)   nervous system and endocrine system.
C)   skeletal system and digestive system.
D)   muscular system and cardiovascular system.
E)   endocrine system and nervous system. The nervous system is involved in the stimulation and control of movement, but it is the muscular system along with the skeletal system that actually moves the body. Muscles are attached to bones by tendons and generate force causing the bones to move relative to each other.F) A) and D)
G) C) and D)

Question 8

In the figure shown here, the tissue indicated by "1" is

Accepted Answer

A)   characterized by a mineralized matrix.
B)   the primary component of the fetal skeleton.
C)   filled with coarse collagen fibers.
D)   storing fat.
E)   a type of epithelial tissue. The tissue indicated by "1" is hyaline cartilage. This tissue has very fine collagen fibers in a solid, yet flexible matrix. It is found on the ends of long bones as in the figure and is the primary component of the fetal skeleton.F) A) and E)
G) A) and D)

Question 9

What is the distinctive characteristic of connective tissue?

Accepted Answer

A)   flat, interconnected cells
B)   presence of a matrix
C)   presence of axons
D)   contractile ability
E)   being hard and mineralizedF) None of the above
G) C) and E) B

Question 10

To enter the body, substances have to pass through connective tissue cells to reach the tissues beneath.

Accepted Answer

A) True 
 B)False

Question 11

The urinary system and respiratory system both participate in homeostasis by removing metabolic waste.

Accepted Answer

A) True 
 B)False

Question 12

List the levels of organization of the body from simple to complex.
1)  organ system
2)  organism
3)  tissue
4)  organ
5)  cell

Accepted Answer

A)   1, 2, 3, 4, 5
B)   2, 4, 1, 3, 5
C)   5, 2, 4, 1, 3
D)   2, 4, 5, 1, 3
E)   5, 3, 4, 1, 2F) C) and D)
G) B) and D)

Question 13

Which cell type supports and nourishes the neurons?

Accepted Answer

A)   neuroglia
B)   axon
C)   dendrites
D)   epithelial cells
E)   platelets In addition to neurons, nervous tissue contains neuroglia, cells that support and nourish neurons. They outnumber neurons nine to one and take up more than half the volume of the brain.F) A) and E)
G) All of the above A

Question 14

The digestive, respiratory, and urinary systems are similar in that they all help maintain

Accepted Answer

A)   fluid level in the blood.
B)   constant temperature in the body.
C)   balance of substances in the blood.
D)   oxygen levels in the blood.
E)   control of the other body systems. The only answer that applies to all three systems is balance of substances in the blood. The digestive system influences nutrient levels; the respiratory system maintains oxygen and carbon dioxide levels; the urinary system rids the blood of wastes.F) C) and D)
G) A) and D)

Question 15

In the figure shown here, the tissue indicated by "2" is

Accepted Answer

A)   dense fibrous connective tissue.
B)   skeletal muscle.
C)   adipose.
D)   loose fibrous connective tissue.
E)   bone.F) A) and B)
G) None of the above

Question 16

Which of the following lists the types of connective tissue from least rigid to most rigid?

Accepted Answer

A)   hyaline cartilage - loose fibrous - bone - blood
B)   blood - loose fibrous - hyaline cartilage - bone
C)   loose fibrous - blood - bone - hyaline cartilage
D)   bone - hyaline cartilage - blood - loose fibrous
E)   blood - bone - hyaline cartilage - loose fibrous The matrix of each type of connective tissue determines its characteristics. Blood has a liquid matrix; loose fibrous tissue has a fibrous matrix; cartilage has a solid but flexible matrix; the matrix of bone is mineralized.F) B) and C)
G) A) and B) B

Question 17

Which body system produces red blood cells?

Accepted Answer

A)   cardiovascular
B)   lymphatic
C)   skeletal
D)   muscular
E)   endocrineF) B) and D)
G) B) and E)

Question 18

Which of the following will happen as a result of the decrease in concentration of carbon dioxide in the blood at the end of the scenario?

Accepted Answer

A)   Jane's rate of breathing will continue to increase.
B)   The signal from the chemoreceptors will stop being sent.
C)   The medulla will send more frequent impulses to the diaphragm and rib muscles.
D)   The signal from the chemoreceptors will be sent more strongly.
E)   The diaphragm and rib muscles will contract more forcefully. Once the controlled condition has returned to within normal range, the receptors will no longer continue to send their signal.F) C) and D)
G) A) and B)

Question 19

Which of the following is not a characteristic of squamous epithelium?

Accepted Answer

A)   lining or covering tissue
B)   cube-shaped cells
C)   flattened cells
D)   adhere to one another
E)   may be found in multiple layers Squamous epithelium is composed of flat, tile-like cells and may occur in multiple layers as in the epidermis of the skin. As with all epithelial cells, it either lines cavities or covers surfaces and cells are attached to neighboring cells, forming an effective barrier.F) C) and D)
G) B) and C)

Question 20

If blood sugar levels drop below normal, the _____ system is primarily responsible for returning levels to normal.

Accepted Answer

A)   digestive
B)   urinary
C)   reproductive
D)   lymphatic
E)   skeletal The digestive system is responsible for bringing nutrients into the body and processing them. The liver, part of the digestive system, stores glucose and releases it when blood sugar levels begin to drop.F) B) and C)
G) C) and E)

Exam 22: Being Organized and Steady

Environmental air temperature can fluctuate many degrees during the course of a day. A human's body temperature

Correct AnswerverifiedShow Answer

In the figure shown here, "2" represents _____, which moves) into the blood from the digestive tract.

Correct AnswerverifiedShow Answer

White blood cells are different from red blood cells in that white blood cells

Correct AnswerverifiedShow Answer

The stimulus in this scenario is

Correct AnswerverifiedShow Answer

If damaged, which tissue type will not be able to conduct an impulse?

Correct AnswerverifiedShow Answer

Most metabolic wastes leave the body through the production of _____ by the _____.

Correct AnswerverifiedShow Answer

Movement of body parts directly requires the

Correct AnswerverifiedShow Answer

In the figure shown here, the tissue indicated by "1" is

Correct AnswerverifiedShow Answer

What is the distinctive characteristic of connective tissue?

Correct AnswerverifiedB

To enter the body, substances have to pass through connective tissue cells to reach the tissues beneath.

Correct AnswerverifiedShow Answer

The urinary system and respiratory system both participate in homeostasis by removing metabolic waste.

Correct AnswerverifiedShow Answer

List the levels of organization of the body from simple to complex. 1) organ system 2) organism 3) tissue 4) organ 5) cell

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Which cell type supports and nourishes the neurons?

Correct AnswerverifiedA

The digestive, respiratory, and urinary systems are similar in that they all help maintain

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In the figure shown here, the tissue indicated by "2" is

Correct AnswerverifiedShow Answer

Which of the following lists the types of connective tissue from least rigid to most rigid?

Correct AnswerverifiedB

Which body system produces red blood cells?

Correct AnswerverifiedShow Answer

Which of the following will happen as a result of the decrease in concentration of carbon dioxide in the blood at the end of the scenario?

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of squamous epithelium?

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If blood sugar levels drop below normal, the _____ system is primarily responsible for returning levels to normal.

Correct AnswerverifiedShow Answer

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Most metabolic wastes leave the body through the production of _ by the _.

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B

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A

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B

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