Earth and Life Science

Quarter 2 – Module 27:

Organ Systems of
Representative Animals
Earth and Life Science
Alternative Delivery Mode
Quarter 2 – Module 27: Organ Systems of Representative Animals

First Edition, 2020

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Development Team of the Module

Writers: Lillet L. Rosales
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Reviewers: Franz Kevin Manalo, Dominic Almirez, Princess Paolah L. De Guzman, Marissa C. Betchaida, Louie L.
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Earth and Life Science
Quarter 2 – Module 27:
Organ Systems of
Representative Animals
Introductory Message
For the facilitator:

Welcome to the Earth and Life Science Grade 11 Alternative Delivery Mode
(ADM) Module on Organ Systems of Representative Animals . This module was
collaboratively designed, developed and reviewed by educators both from public
and private institutions to assist you, the teacher or facilitator in helping the
learners meet the standards set by the K to 12 Curriculum while overcoming their
personal, social, and economic constraints in schooling.

This learning resource hopes to engage the learners into guided and independent
learning activities at their own pace and time. Furthermore, this also aims to help
learners acquire the needed 21st century skills while taking into consideration
their needs and circumstances.

In addition to the material in the main text, you will also see this box in the body of
the module:

This contains helpful tips or strategies that will help you in guiding the learners

As a facilitator you are expected to orient the learners on how to use this module.
You also need to keep track of the learners' progress while allowing them to
manage their own learning. Furthermore, you are expected to encourage and assist
the learners as they do the tasks included in the module.

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For the learner:

Welcome to Earth and Life Science Grade 11 Alternative Delivery Mode (ADM)
Module on Organ Systems of Representative Animals. The hand is one of the most
symbolized part of the human body. It is often used to depict skill, action and
purpose. Through our hands we may learn, create and accomplish. Hence, the
hand in this learning resource signifies that you as a learner is capable and
empowered to successfully achieve the relevant competencies and skills at your
own pace and time. Your academic success lies in your own hands!

This module was designed to provide you with fun and meaningful opportunities
for guided and independent learning at your own pace and time. You will be
enabled to process the contents of the learning resource while being an active
learner.

This module has the following parts and corresponding icons:

What I Need to Know This will give you an idea of the skills or
competencies you are expected to learn in
the module.

What I Know This part includes an activity that aims to

check what you already know about the
lesson to take. If you get all the answers
correct (100%), you may decide to skip this
module.

What’s In This is a brief drill or review to help you link

the current lesson with the previous one.

What’s New In this portion, the new lesson will be

introduced to you in various ways such as a
story, a song, a poem, a problem opener, an
activity or a situation.

What is It This section provides a brief discussion of

the lesson. This aims to help you discover
and understand new concepts and skills.

What’s More This comprises activities for independent

practice to solidify your understanding and
skills of the topic. You may check the
answers to the exercises using the Answer
Key at the end of the module.

What I Have Learned This includes questions or blank

sentence/paragraph to be filled in to

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 process what you learned from the lesson.

What I Can Do This section provides an activity which will

help you transfer your new knowledge or
skill into real life situations or concerns.

Assessment This is a task which aims to evaluate your

level of mastery in achieving the learning
competency.

Additional Activities In this portion, another activity will be given

to you to enrich your knowledge or skill of
the lesson learned. This also tends
retention of learned concepts.

Answer Key This contains answers to all activities in the

module.

At the end of this module you will also find:

References This is a list of all sources used in

developing this module.

The following are some reminders in using this module:

1. Use the module with care. Do not put unnecessary mark/s on any part of
the module. Use a separate sheet of paper in answering the exercises.
2. Don’t forget to answer What I Know before moving on to the other activities
included in the module.
3. Read the instruction carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking your
answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are through with it.
If you encounter any difficulty in answering the tasks in this module, do not
hesitate to consult your teacher or facilitator. Always bear in mind that you are
not alone.

We hope that through this material, you will experience meaningful learning
and gain deep understanding of the relevant competencies. You can do it!

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 What I Need to Know

This module was designed and written with you in mind. It is here to help you
master the nature of Organ Systems. The scope of this module permits it to be used
in many different learning situations. The language used recognizes the diverse
vocabulary level of students. The lessons are arranged to follow the standard
sequence of the course. But the order in which you read them can be changed to
correspond with the textbook you are now using.

The module is divided into three lessons, namely:

 Lesson 2 – Functional Relationships of the Different Organ Systems in
Ensuring Animal Survival

After going through this module, you are expected to:

1. identify the different function organ system of the representative animal; and
2. explain the functional relationships of the different function organ system in
ensuring animal survival.

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 What I Know

Directions. Choose the letter of the correct answer. Write the chosen letter on a
separate sheet of paper.

1. Your body needs to send urine out of the body. Which systems are involved?
A. Endocrine and excretory systems
B. Excretory and muscular systems
C. Muscular and digestive systems
D. Nervous and endocrine systems
2. What two body systems are most useful in getting nutrients from the food that
you eat?
A. Muscular and endocrine systems
B. Nervous and digestive systems
C. Nervous and circulatory systems
D. Circulatory and digestive systems
3. A student is outside on a very hot day. How does perspiration help maintain his
body heat?
A. It prevents heat from entering his body.
B. It causes evaporation and carries away body heat
C. It washes off bacteria off his skin.
D. It causes evaporation and saves body heat
4. Feedback mechanisms that regulate sugar levels in the blood belong to which
system?
A. Nervous system
B. Immune system
C. Digestive system
D. Endocrine system
5. The function of the cardiovascular or circulatory system is to transport blood
though out the body. What organ provides the force needed to transport or
move to move the blood?
A. Arteries
B. Brain
C. Heart
D. Capillaries
6. The digestive system is to absorbing nutrients as the circulatory system is to
A. Removing nutrients
B. Attracting nutrients
C. Distributing nutrients
D. Fighting infections
7. The immune system is to antibodies as the endocrine system is to
A. White blood cells
B. Nerve cells
C. Marrow
D. Hormones
8. Hormones increase the heart rate of an animal in danger?
A. Skeletal and circulatory
B. Immune and endocrine
C. Circulatory and endocrine
D. Endocrine and respiratory

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9. How does the feedback mechanism maintains your body temperature when
your surroundings are very hot?
A. The brain sends a message to the skin. The muscles in the skin contract, or
shiver, to cool the body.
B. The muscles in the skin contract, which sends a message to the brain that
you feel hot. The brain sends a message to the skin’s heat receptors.
C. Heat receptors in the skin send a message to the brain. The brain sends a
response to start sweating, which cools the body.
D. The skin starts sweating. The sweat sends a message to the brain, which
sends a response to stop sweating.
10. What two organs make up the central nervous system?
A. somatic nerves and autonomic nerves
B. cerebrum and cerebellum
C. neurons and receptors
D. brain and spinal cord
11. Which body system is responsible for taking in oxygen and getting rid of carbon
dioxide?
A. cardiovascular system
B. lymphatic system
C. lung system
D. respiratory system
12. Which of the following statements describes the role of the nervous system in
catching a baseball?
A. It provides structure for arm muscles.
B. It tells arm muscles to contract.
C. It releases adrenaline and prepares the student to run.
D. It provides energy to arm muscles.

13. What role does the endocrine system play in the body?
A. It controls voluntary actions.
B. It controls activities such as speaking, reading, and writing.
C. It controls bodily functions by means of chemical messengers.
D. It sends electrical messages along the spinal cord to muscles and glands.

14. Riding a bicycle requires additional energy from leg muscles. Which of the
following conditions may result from this activity, and which response helps
restore the body to its normal condition?
A. increased carbon dioxide in the blood can be removed by breathing faster
B. decreased oxygen can be replaced by digesting an apple
C. increased sugars in the blood stream can be diluted by drinking water
D. increased salt wastes can be removed by the heart

15. What is the major role of red blood cells in the circulatory system?
A. carry nutrients and oxygen to body cells
B. prevent disease and fight infection
C. carry digestive juices to the stomach
D. send chemical messages to the nervous system.

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Lesson Functional Relationships of the

2 different Organ Systems in ensuring

Animal Survival

Every day, you use your body to do a lot of things. Because of your body,
you can think, move, play and generally go about your daily activities. There are lot
of things happening inside your body that make life possible. You are alive because
of the many wonderful systems of organs that work together perfectly through very
complex processes. These organ systems keep in touch with one another,
exchanging information and working together to keep you alive.

What’s In

The body of an animal consist of various organ systems.

Each of which contains several specific organs. An organ is a
unique anatomic structure consisting of groups of tissues that work in concert to
perform specific function.

System of Major Organ Function of the Organ System

the Body
Digestive Esophagus, stomach, Process foods and absorb nutrients,
System small intestine, large minerals, vitamins, and water.
intestine, rectum
Respiratory Nose, trachea, bronchi, Deliver air to sites where gas exchange
System lungs can occur.
Circulatory Heart, blood vessels Transport oxygen, nutrients and other
System substances to the cells and transport
wastes, carbon dioxide and other
substances away from the cells; help to
stabilize body temperature and pH.
Urinary Kidneys, urinary Removes excess water, salts, and waste
System bladder, ureter products from the blood and body and
controls pH
Immune Bone marrow, thymus Defends against microbial pathogens
System and other diseases
Nervous Brain, spinal cord Collects, transfers and process
System information and directs short term
change in other organ systems.
Endocrine Glands produce Provides communication within the body
System hormones via hormone and direct long term
change in other organ systems to

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 maintain homeostasis
Muscular Muscles, tendons Provides movement, support and heat
System production
Skeletal Bones, cartilages, Supports and protects soft tissues of the
System ligaments body; provide movement at joints;
produces blood cells

Notes to the Teacher

This module introduces you to the relationships of different organ
system. You will also discover in this module that anything
happens to these small parts will affect the functioning of the
organs, organ systems and the whole organism. Be guided with
the instruction on how you answer the activities.

What’s New

There are various systems in the animal’s body: muscular system,

respiratory system, digestive system, skeletal system, circulatory (or
cardiovascular) system, excretory (or urinary) system, reproductive system, nervous
system, Immune system, and endocrine system. Each system has a special job. All
of the body systems have to work together to keep them healthy. The bones and
muscles work together to support and move the body. The respiratory system takes
in oxygen from the air. It also gets rid of carbon dioxide. The digestive system
absorbs water and nutrients from the food we eat. The circulatory system carries
oxygen, water, and nutrients to cells throughout the body. Wastes from the cells
are eliminated by the respiratory system, the excretory system, and the skin. The
nervous system controls all these activities with electrical impulses. If any system
in the animal’s isn't working properly, other systems are affected.
ACTIVITY 1

Matching questions: Write the letter in the blank that match to the given systems
A.

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_____1. Digestive system and Muscular System
_____2. Muscular System and Respiratory System
_____3. Urinary System and Circulatory System
_____4. Endocrine System and Nervous System
_____5. Respiratory system and Circulatory system
_____6. Endocrine System and Skeletal System
_____7. Digestive System and Circulatory System
_____8. Immune System and Skeletal System
_____9. Respiratory System and Circulatory System
_____10. Endocrine System and Circulatory System

B.
A. These systems interact when food is pushed down the esophagus to the
stomach.
B. These systems interact when the kidneys filter materials out of the body.
C. These systems interact to allow the inhalation and exhalation of gases.
D. These systems interact when glands of the brain control functions of the
body.
E. Takes oxygen for the delivery to cells and remove carbon dioxide brought
from the cell
F. Hormone increase the heart rate of an animal in danger
G. Oxygen is delivered from the lungs directly to your blood stream
H. Bone marrow produces red blood cell
I. Protein and sugar travels from the intestines directly to blood
J. The hormone testosterone increase the bone density of a growing male

What is It

Each Body System Works with the Others

Each individual body system works in conjunction with other body systems. The
circulatory system is a good example of how body systems interact with each other.
The heart pumps blood through a complex network of blood vessels. When the
blood circulates through the digestive system, for example, it picks up nutrients
the body absorbed from the last meal. The blood also carries oxygen inhaled by the
lungs. The circulatory system delivers oxygen and nutrients to the other cells of the
body then picks up any waste products created by these cells, including carbon
dioxide, and delivers these waste products to the kidneys and lungs for disposal.
Meanwhile, the circulatory system carries hormones from the endocrine system,
and the immune system’s white blood cells that fight off infection.

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 Each of the body systems relies on the others to
work well. The respiratory system relies on the
circulatory system to deliver the oxygen it
gathers, while the muscles of the heart cannot
function without the oxygen they receive from
the lungs. The bones of the skull and spine
protect the brain and spinal cord, but the brain
regulates the position of the bones by controlling
the muscles. The circulatory system provides the
brain with a constant supply of oxygen-rich
blood while the brain regulates the heart rate
and blood pressure.
Even seemingly unrelated body systems are
connected. The skeletal system relies on the
urinary system to remove waste produced by
bone cells; in return, the bones of the skeleton
create structure that protects the bladder and other urinary system organs. The
circulatory system delivers oxygen-rich blood to the bones. Meanwhile, the bones
are busy making new blood cells. Working together, these systems maintain
internal stability and balance, otherwise known as homeostasis.

What’s More

Each organ system interacts with at least one other organ system. Organ systems
do not work independently; organ systems interact with each other to keep the
organism functioning. The systems of the body are interdependent. The job that
one system carries out depends on and influence jobs carried out by other systems.

Activity 1

Complete the table below by listing the body systems that interact together for each
scenario described.

SYSTEMS INTERACTION
1 Lungs supply oxygen carried by the blood to cells of
the body
2 Nutrients pass into the circulatory system to be
carried to body cells
3 Kidneys remove wastes from blood
4 Movement of the diaphragm in breathing
5 Production of blood cells in bone marrow
6 Daily movement and coordination
7 Pumping of the heart & blood
8 Chewing, swallowing and movement of food through

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 the digestive tract
9 Pulmonary vein brings blood from the lugs back to
the heart
10 Muscles in the leg cause the tibia and fibula bones
to move upward

Question:

How do they all function together?

__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________

Activity 2

The human body systems interact to perform several functions for the whole
organism. Give the functions of the body when two systems work together.

1.

2.

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 3.

4.

5.

Activity 3
Complete the table by writing the relationship of the given organ to the different
organ of the body.
System of the Body Interactions- Working with other Systems
Digestive System a. with circulatory system:
b. with muscular system:
c. with nervous system:
Respiratory System a. with circulatory system:
b. with muscular system:
c. with nervous system:
d. with urinary system:
Circulatory System a. with respiratory system:

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 b. with digestive system:
c. with nervous system:
d. with urinary system:
Urinary System a. with circulatory system:
b. with respiratory system:
Immune System a. with circulatory system:
b. with skeletal system:
Nervous System Controls all other systems:
Endocrine System a. with circulatory system:
b. with skeletal system:
c. with nervous system:
Muscular System a. with circulatory system:
b. with skeletal system:
c. with nervous system:
d. with digestive system:
e. with respiratory system:
Skeletal System a. with circulatory system:
b. with muscular system:
c. with immune system:

What I Have Learned

Answer the missing word to complete the sentence

1. The digestive system relies on the ___________system to deliver the nutrients to

the entire body of the organism.
2. The respiratory system provides oxygen to the _______________system.
3. Carbon dioxide from cells is delivered from the circulatory system back to
the____________________ system so it can exit the body.
4. The circulat6ry system carries the waste from throughout the organism to the
_____________________ system, which takes care of excreting the waste from the
organism;
5. The circulatory system and the _____________system interact to deliver oxygen to
and to remove carbon dioxide from cells.

What I Can Do

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1. How will you protect your body from pathogens?
__________________________________________________________________________________
__________________________________________________________________________________
_________________________________________________________________________________

2. Write a paragraph on how your body system is working together?

While I am (verb) ______________________________ here is how my body systems are
working together.
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________

Assessment

Directions. Choose the letter of the correct answer. Write the chosen letter on a
separate sheet of paper.

1. Which of the following is an example of the endocrine system directly interacting

with the nervous system?
A. Hormones provide feedback that affects neutral processing
B. The vertebrae protect the spinal cord from injury
C. Sensory receptors in bones send signals about body position to the brain
D. The brain sends signals that control the speed at which food moves through
the intestines.

2. During the final stages of human gestation, receptors for the hormone oxytocin
increase on the smooth muscle cells of the uterus. The release of the oxytocin
during labor stimulates the smooth muscle tissue in the wall of the uterus. The
vigorous contraction of the uterine smooth muscle helps push the baby through
the birth canal so that delivery can occur. This process involves the interaction
of which organ system?
A. Endocrine and reproductive only
B. Endocrine and muscular only
C. Endocrine, muscular and reproductive
D. Endocrine, reproductive, and excretory

3. Kidneys are part of the excretory system. They purify the impure blood and send
it back to the rest of the body. Which system is mainly responsible for the
transport of plasma to the kidneys?
A. Circulatory systems
B. Respiratory systems
C. Nervous systems

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 D. Muscular systems

4. What two body systems are most useful in getting nutrients from the food that
you eat?
A. Muscular and endocrine systems
B. Nervous and digestive system
C. Nervous and circulatory systems
D. Circulatory and digestive systems

5. What two systems work together to provide body cells with a constant supply of
oxygen while removing carbon dioxide waste?
A. Circulatory and respiratory systems
B. Muscular and circulatory systems
C. Nervous and circulatory systems
D. Nervous and immune systems

6. Which of the following describes an interaction that occurs between two body
systems of a rabbit that helps the rabbit outrun a pursuing coyote?
A. The endocrine system releases hormones that prepare the immune system to
deal with the possible injuries.
B. The digestive system increases the rate of digestion, and the excretory system
ceases to provide tissues with more nutrients
C. The respiratory system increases the breathing rate, and the circulatory
system increases blood pressure to provide tissues with more oxygen
D. The skeletal system releases additional calcium, and the circulatory system
retains more sodium in the blood to provide muscles with ions for contraction

7. The human digestive system id approximately 900 cm long. Food is moved

through the digestive tract primarily by:
A. Bile produce by the pancreas
B. Hydrochloric acid by the stomach
C. Muscular contractions
D. The enzyme amylase and pepsin

8. The digestive system is to absorbing nutrients as the circulatory system is to

A. Removing nutrients
B. Attracting nutrients
C. Disturbing nutrients
D. Fighting infections

9. How do circulatory system and immune system work together to respond to an

injury?
A. Increase blood flow carries white blood cells to the site of the injury
B. Increase blood flow kills healthy cells which prevents infection at the site of
the injury
C. Increase blood flow allows for an increase in the exchange of carbon dioxide
and oxygen at the site of the injury
D. Increase blood flow removes infected cells from the body at the site of the
injury

10. Which body systems must directly interact for vertebrate organism to exchange
gasses?
A. Circulatory and respiratory
B. Endocrine and respiratory
C. Immune and endocrine

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 D. Skeletal and circulatory

11. A deer hears a predator approaching and begins to run for safety. The deer has
primarily engaged what body system to escape?
A. Muscular, reproductive and circulatory system
B. Muscular, digestive, and immune system
C. Nervous, respiratory, and muscular system
D. Respiratory, endocrine and excretory system

12. Which two systems alert the young bird to the danger and help produce the
vomit it uses as a defense?
A. Excretory and immune
B. Muscular and digestive
C. Nervous and digestive
D. Urinary and muscular

13. Which of the following is an example of the endocrine system directly

interacting with the nervous system?
A. Hormones provide feedback that affect neuron processing
B. The brain sends signal that control the speed at which food moves through
the intestines
C. The vertebrae protect the spinal cord from injury
D. Sensory receptors in bones send signals about body position to the brain.

14. Which body systems work together to protect the body from pathogens?
A. Circulatory and immune
B. Digestive and excretory.
C. Endocrine and reproductive.
D. Muscular and vascular

15. How does the digestive system work with all other systems?
A. The digestive system transport blood to all the other systems
B. The digestive system puts oxygen into the body
C. The digestive system gives the body energy and nutrients
D. The digestive system allows the body to move

Additional Activities

Reflection: You can’t have one without the other: How can you relate this to your
body systems?

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What I Know What's More
1. B Activity 1
2. D 1. respiratory and circulatory
3. B 2. digestive and circulatory
4. D 3.urinary and circulatory
5. C 4. respiratory and muscular
6. C 5. immune and skeletal
7. D 6. muscular and nervous
8. C 7. Muscular and circulatory
9. C 8. Digestive and muscular
10. D 9. Respiratory and muscular
11. D 10. Skeletal and muscular
12. C
13. C Activity 2
14. A 1. The circulatory system carries nutrient to different
15. A part of the body from the digestive system
2. The excretory system filters waste out of the blood
Assessment 3. The muscular system allows movement of the
1. A bones
2. C 4. The circulatory system takes the oxygen for
3. A delivery to cells and removes carbon dioxide brough
4. D from cells
5. A 5. The circulatory transport the antibodies to fight
6. C invaders.
7. C
8. C
9. A
10. A
11. C
12. C
13. A
14. A
15. C
Answer Key
References

www.courses.lumenlearning.com
https://www.cpb-us-e1.wpmucdn.com
www.reverehealth.com
www.scrib.com
https://www.nationalgeographic.org/activity/interconnected-systems-human-body/.
https://opentextbc.ca/anatomyandphysiology/chapter/1-3-functions-of-human-life-2/
https://link.springer.com/content/pdf/10.1007%2F978-0-387-77251-6_27.pdf
https://cpb-us-e1.wpmucdn.com/cobblearning.net/dist/9/1335/files/2014/01/Human-Body-
Systems-Exam-20kdl6d.pdf
https://quizizz.com/admin/quiz/572b58956f6f9f11113f102b/body-system-test-review
https://study.com/academy/exam/topic/human-body-systems.html
https://www.proprofs.com/quiz-school/story.php?title=body-systems-test

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