Page 47 - Science Course 2 (Book 1)

Human Body Systems Mo2-L3a: How Do Nutrients Enter and
Lesson 3 Leave the Body?

nutrient
a part of food used by the body to grow and
In this topic, you will learn the following survive.
lessons:

Mo.2-L3a: How Do Nutrients Enter and Leave the
Body?
Mo.2-L3b: How are Nutrients Transported Around
the Body?
Mo.2-L3c: How Does the Body Protect Itself From
Harmful Invaders?

Mo2-L3a How Do Nutrients Enter and
Leave the Body?
calorie
KEY CONCEPTS: the amount of energy it takes to raise the
1. How do nutrients enter and leave the body? temperature of 1 kg of water by 1˚ C.

Vocabulary A-Z

Let us learn some vocabulary

organ system
a group of organs that work together and perform
a specific task.
Let’s Begin

The Body’s Organization

Groups of organs that work together and perform a
specific task are organ systems.

Brain

Trachea
homeostasis Lungs
an organism’s ability to maintain steady internal
conditions when outside conditions change. Heart Spleen
Sensor Liver

Kidneys Stomach
Pancreas
Bladder Intestine
Integrator Effector
Male
Reproductive
System

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