Science Eight Chapter Two: Question Preview (ID: 4195)

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This system defends the body against infections
a) immune
b) endocrine
c) skeletal
d) nervous

This system detects, signals, and responds to changes in the environment
a) endocrine
b) muscular
c) respiratory
d) nervous

The organs in the digestive system include
a) heart, stomach, lungs
b) small intestine, large intestine, stomach
c) only the heart
d) none of the above

A nutrient used for quick energy is a
a) protein
b) carbohydrate
c) fat
d) mineral

The part of the digestive system that ingests food is the
a) mouth
b) stomach
c) esophagus
d) all of the above

Iron and calcium are examples of
a) minerals
b) carbohydrates
c) fats
d) vitamins

Blood is transported TO the heart through
a) veins
b) arteries
c) capillaries
d) bronchioles

The left ventricle sends oxygen-rich blood
a) from the lungs to the heart
b) to the lungs
c) from the veins into the right atrium
d) to the whole body through the arteries

The heart is a(n)
a) cell
b) tissue
c) organ
d) organ system

Oxygen enters your body when you
a) inhale
b) exhale
c) both inhale and exhale
d) none of the above

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