Question 1

How do we perceive the pitch of sounds?

Accepted Answer

A)  The tympanic membrane vibrates more strongly at high frequencies. 
B)  The hammer, anvil, and stirrup vibrate at different speeds. 
C)  Different parts of the basilar membrane vibrate in response to different frequencies of sound. 
D)  Rods vibrate in response to high- frequency sounds and cones respond to low- frequency sounds. 
E)  The pinna swivels in different directions in response to sounds of different frequency. 
A)  The tympanic membrane vibrates more strongly at high frequencies. 
B)  The hammer, anvil, and stirrup vibrate at different speeds. 
C)  Different parts of the basilar membrane vibrate in response to different frequencies of sound. 
D)  Rods vibrate in response to high- frequency sounds and cones respond to low- frequency sounds. 
E)  The pinna swivels in different directions in response to sounds of different frequency.

Question 2

What symptoms indicate that the auditory tube is blocked?

Accepted Answer

Pressure either increases or d

Question 3

How does an insect see the world, as many separate images or as a single image?

Accepted Answer

Insects see a pixela

Question 4

The strength of a stimulus is indicated by the of action potentials.

Accepted Answer

A)  duration 
B)  intensity 
C)  frequency 
D)  loss 
E)  speed 
A)  duration 
B)  intensity 
C)  frequency 
D)  loss 
E)  speed

Question 5

Why do your parents or grandparents most likely need glasses to read?

Accepted Answer

A)  The lens of the eye becomes rounder with age. 
B)  The lens of the eye stiffens with age, making it difficult to focus on nearby objects. 
C)  The optic nerve sends signals more slowly as people age. 
D)  The photoreceptors of the eye are no longer as responsive. 
E)  They have spent more time reading books at close range than have younger people. 
A)  The lens of the eye becomes rounder with age. 
B)  The lens of the eye stiffens with age, making it difficult to focus on nearby objects. 
C)  The optic nerve sends signals more slowly as people age. 
D)  The photoreceptors of the eye are no longer as responsive. 
E)  They have spent more time reading books at close range than have younger people.

Question 6

Optimal color vision occurs in the fovea, a depression in the retina where most of the are located.

Accepted Answer

The answer of Optimal color vision occurs in the fovea,...

Question 7

-Owls have many anatomical modifications that enable them to hunt at night. For example, some of their feathers are serrated on the edges, which eliminate the noise created by air flowing over a smooth feather surface. Owls can thus descend on their prey without a sound. They can locate small prey with remarkable accuracy, even in dim light or complete darkness. Experiments conducted in totally dark, soundproof rooms hav shown that owls can capture prey after pinpointing its location to within 1.5 degrees in both horizontal and verti planes.
Based on this scenario, which of these structures do owls primarily rely on when they hunt in total darkness?

Accepted Answer

A)  Nociceptors 
B)  Mechanoreceptors 
C)  Photoreceptors 
D)  Olfactory bulb 
E)  Umami receptors 
A)  Nociceptors 
B)  Mechanoreceptors 
C)  Photoreceptors 
D)  Olfactory bulb 
E)  Umami receptors

Question 8

What is the blind spot?

Accepted Answer

A)  An area of the retina that has no receptor cells 
B)  A space in the vitreous humor 
C)  The part of the cerebral cortex that interprets action potentials from the eye 
D)  The hole where there is no iris 
E)  A part of the cornea 
A)  An area of the retina that has no receptor cells 
B)  A space in the vitreous humor 
C)  The part of the cerebral cortex that interprets action potentials from the eye 
D)  The hole where there is no iris 
E)  A part of the cornea

Question 9

-Which part of the eye shown in the above figure changes shape to focus on objects at different distances?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 10

The round shape of the eyeball is maintained by the gel- like

Accepted Answer

A)  vitreous humor. 
B)  aqueous humor. 
C)  cornea. 
D)  choroid. 
E)  iris. 
A)  vitreous humor. 
B)  aqueous humor. 
C)  cornea. 
D)  choroid. 
E)  iris.

Question 11

How does the ear distinguish between loud and soft sounds?

Accepted Answer

The louder the sound, the more the hair

Question 12

Spicy foods often contain the chemical capsaicin, which activates certain receptors in the mouth, causing your mouth to feel like it is "burning." The receptors activated by capsaicin are also activated by

Accepted Answer

A)  glutamate. 
B)  acidic foods. 
C)  very hot temperatures. 
D)  salty foods. 
E)  sweet foods. 
A)  glutamate. 
B)  acidic foods. 
C)  very hot temperatures. 
D)  salty foods. 
E)  sweet foods.

Question 13

A stimulus that is strong enough to trigger an action potential is said to be above

Accepted Answer

A)  capacity. 
B)  maximum. 
C)  frequency. 
D)  intensity. 
E)  threshold. 
A)  capacity. 
B)  maximum. 
C)  frequency. 
D)  intensity. 
E)  threshold.

Question 14

What is the effect of a cornea that is too flat?

Accepted Answer

A)  Blindness 
B)  Nearsightedness 
C)  Farsightedness 
D)  An enlarged blind spot 
A)  Blindness 
B)  Nearsightedness 
C)  Farsightedness 
D)  An enlarged blind spot

Question 15

The stronger the stimulus, the larger the action potential.

Accepted Answer

A) True 
 B)False

Question 16

The stronger the stimulus, the larger the receptor potential.

Accepted Answer

A) True 
 B)False

Question 17

Olfactory receptors are located in the cavity.

Accepted Answer

The answer of Olfactory receptors are located in the cavity....

Question 18

Which is the correct sequence of structures through which light passes in the eye?

Accepted Answer

A)  Pupil -vitreous humor -aqueous humor -retina -cornea 
B)  Aqueous humor -cornea -lens -pupil -retina -vitreous humor 
C)  Lens -cornea -vitreous humor -retina -aqueous humor -pupil 
D)  Lens -pupil -cornea -aqueous humor -retina 
E)  Cornea -aqueous humor -pupil -lens -vitreous humor -retina 
A)  Pupil -vitreous humor -aqueous humor -retina -cornea 
B)  Aqueous humor -cornea -lens -pupil -retina -vitreous humor 
C)  Lens -cornea -vitreous humor -retina -aqueous humor -pupil 
D)  Lens -pupil -cornea -aqueous humor -retina 
E)  Cornea -aqueous humor -pupil -lens -vitreous humor -retina

Question 19

Which of the following is NOT a type of cone found in the human retina?

Accepted Answer

A)  Yellow 
B)  Blue 
C)  Green 
D)  Red 
A)  Yellow 
B)  Blue 
C)  Green 
D)  Red

Question 20

In humans, depth perception is possible because

Accepted Answer

A)  the two eyes have overlapping visual fields. 
B)  we have two eyes on the sides of our heads. 
C)  the two eyes are necessary for any vision to occur. 
D)  each of the two eyes "sees" an entirely different image. 
E)  the two eyes see identical images. 
A)  the two eyes have overlapping visual fields. 
B)  we have two eyes on the sides of our heads. 
C)  the two eyes are necessary for any vision to occur. 
D)  each of the two eyes "sees" an entirely different image. 
E)  the two eyes see identical images.

Exam 40: The Senses

How do we perceive the pitch of sounds?

What symptoms indicate that the auditory tube is blocked?

How does an insect see the world, as many separate images or as a single image?

The strength of a stimulus is indicated by the of action potentials.

Why do your parents or grandparents most likely need glasses to read?

Optimal color vision occurs in the fovea, a depression in the retina where most of the are located.

What is the blind spot?

-Which part of the eye shown in the above figure changes shape to focus on objects at different distances?

The round shape of the eyeball is maintained by the gel- like

How does the ear distinguish between loud and soft sounds?

Spicy foods often contain the chemical capsaicin, which activates certain receptors in the mouth, causing your mouth to feel like it is "burning." The receptors activated by capsaicin are also activated by

A stimulus that is strong enough to trigger an action potential is said to be above

What is the effect of a cornea that is too flat?

The stronger the stimulus, the larger the action potential.

The stronger the stimulus, the larger the receptor potential.

Olfactory receptors are located in the cavity.

Which is the correct sequence of structures through which light passes in the eye?

Which of the following is NOT a type of cone found in the human retina?

In humans, depth perception is possible because

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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