Question 1

Which animal below has a skeleton that is a hydrostat?

Accepted Answer

A) grasshopper 
B) octopus 
C) bluebird 
D) catfish 
A) grasshopper 
B) octopus 
C) bluebird 
D) catfish B

Question 2

Some genetically inherited forms of heart failure are caused by a mutation of the gene for myosin. Specifically, what part of the heart would be affected by this mutation?

Accepted Answer

A) sarcomeres 
B) Z discs 
C) tendons 
D) smooth muscle 
A) sarcomeres 
B) Z discs 
C) tendons 
D) smooth muscle A

Question 3

Muscles work in pairs, because

Accepted Answer

A) contracted muscle cannot stretch itself back out again. 
B) stretched muscle cannot contract by itself. 
C) actin is located in one muscle of the pair, and myosin is in the other. 
D) myofibrils of the paired muscles are connected. 
A) contracted muscle cannot stretch itself back out again. 
B) stretched muscle cannot contract by itself. 
C) actin is located in one muscle of the pair, and myosin is in the other. 
D) myofibrils of the paired muscles are connected. A

Question 4

Animals that swim expend less energy to move than do animals that walk or fly because

Accepted Answer

A) water provides less resistance than air. 
B) gravity has more impact on aquatic animals than it does on terrestrial animals. 
C) aquatic animals do not have to use muscles to move their fins and tails. 
D) the streamlined shapes and nonstick surfaces of aquatic animals reduce resistance due to drag. 
A) water provides less resistance than air. 
B) gravity has more impact on aquatic animals than it does on terrestrial animals. 
C) aquatic animals do not have to use muscles to move their fins and tails. 
D) the streamlined shapes and nonstick surfaces of aquatic animals reduce resistance due to drag.

Question 5

In the contraction of a sarcomere, which of the following "walks" its way along filaments?

Accepted Answer

A) Z discs 
B) actin 
C) myosin 
D) myofibrils 
A) Z discs 
B) actin 
C) myosin 
D) myofibrils

Question 6

The matrix of cartilage tissue is made up of

Accepted Answer

A) collagen. 
B) calcium. 
C) phosphorous. 
D) hydrostatic materials. 
A) collagen. 
B) calcium. 
C) phosphorous. 
D) hydrostatic materials.

Question 7

Improvement of running performances has been greatly attributed to advancements in ____________________.

Accepted Answer

The answer of Improvement of running performances has been greatly...

Question 8

Which of the following would be found in a sarcomere?

Accepted Answer

A) cartilage 
B) actin 
C) collagen 
D) chitin 
A) cartilage 
B) actin 
C) collagen 
D) chitin

Question 9

Running times in the 100-meter dash have decreased due to

Accepted Answer

A) a decrease in illegal drug use. 
B) better corporate sponsors. 
C) use of equipment that reduces drag. 
D) use of equipment that increases drag. 
A) a decrease in illegal drug use. 
B) better corporate sponsors. 
C) use of equipment that reduces drag. 
D) use of equipment that increases drag.

Question 10

By the time a human is born, its skeleton has been completely replaced with bone.

Accepted Answer

A) True 
 B)False

Question 11

In humans, red and white blood cells are made in

Accepted Answer

A) compact bone. 
B) cartilage. 
C) tendons. 
D) bone marrow. 
A) compact bone. 
B) cartilage. 
C) tendons. 
D) bone marrow.

Question 12

One reason cats survive falls from heights better than humans do is that

Accepted Answer

A) they stiffen their bodies as they fall. 
B) their skeletons are made of cartilage. 
C) they twist their bodies so as to land only on their hind feet. 
D) relative to body weight, their skeletons are stronger than human skeletons. 
A) they stiffen their bodies as they fall. 
B) their skeletons are made of cartilage. 
C) they twist their bodies so as to land only on their hind feet. 
D) relative to body weight, their skeletons are stronger than human skeletons.

Question 13

Insectivores easily obtain protein sources because exoskeletons are made of ____________________.

Accepted Answer

The answer of Insectivores easily obtain protein sources because exoskeletons...

Question 14

The axial skeleton includes the

Accepted Answer

A) spinal column only. 
B) spinal column, skull, and rib cage. 
C) all bones in the arms and legs. 
D) spinal column and pelvis. 
A) spinal column only. 
B) spinal column, skull, and rib cage. 
C) all bones in the arms and legs. 
D) spinal column and pelvis.

Question 15

Which of the following animals has a skeleton made of carbohydrates linked with proteins?

Accepted Answer

A) mouse 
B) housefly 
C) shark 
D) swallow 
A) mouse 
B) housefly 
C) shark 
D) swallow

Question 16

The stiffness of a hydrostat is generated by

Accepted Answer

A) using muscle contraction to squeeze a water-filled body cavity. 
B) reducing the amount of water present in a body cavity. 
C) increasing the thickness of internal bones over time. 
D) increasing the amount of air present in a body cavity. 
A) using muscle contraction to squeeze a water-filled body cavity. 
B) reducing the amount of water present in a body cavity. 
C) increasing the thickness of internal bones over time. 
D) increasing the amount of air present in a body cavity.

Question 17

An increase in muscle strength can result from either an increase in muscle fiber number or an increase in the thickness of existing muscle fibers.

Accepted Answer

A) True 
 B)False

Question 18

Hemoglobin allows slow muscle fibers to continue cellular respiration even when blood levels of oxygen are low.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following would play a role in movement as well as protection?

Accepted Answer

A) femur 
B) skull 
C) spinal column 
D) radius 
A) femur 
B) skull 
C) spinal column 
D) radius

Question 20

A hydrostat generates energy as it creates pressure.

Accepted Answer

A) True 
 B)False

Exam 31: Skeletons, Muscles, and Movement

Which animal below has a skeleton that is a hydrostat?

Some genetically inherited forms of heart failure are caused by a mutation of the gene for myosin. Specifically, what part of the heart would be affected by this mutation?

Muscles work in pairs, because

Animals that swim expend less energy to move than do animals that walk or fly because

In the contraction of a sarcomere, which of the following "walks" its way along filaments?

The matrix of cartilage tissue is made up of

Improvement of running performances has been greatly attributed to advancements in ____________________.

Which of the following would be found in a sarcomere?

Running times in the 100-meter dash have decreased due to

By the time a human is born, its skeleton has been completely replaced with bone.

In humans, red and white blood cells are made in

One reason cats survive falls from heights better than humans do is that

Insectivores easily obtain protein sources because exoskeletons are made of ____________________.

The axial skeleton includes the

Which of the following animals has a skeleton made of carbohydrates linked with proteins?

The stiffness of a hydrostat is generated by

An increase in muscle strength can result from either an increase in muscle fiber number or an increase in the thickness of existing muscle fibers.

Hemoglobin allows slow muscle fibers to continue cellular respiration even when blood levels of oxygen are low.

Which of the following would play a role in movement as well as protection?

A hydrostat generates energy as it creates pressure.

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Defenses Against Disease

Reproduction and Development

Animal Behavior

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