A selectively permeable cell membrane is one that allows certain molecules or ions to pass through it by means of active or passive transport
Responda
True
False
Questão 2
Questão
What is the role of the respiratory system?
Responda
To help your body rest.
To pump blood throughout the body.
To bring oxygen in and carbon dioxide out.
To control your nerves.
Questão 3
Questão
What is the role of the circulatory system?
Responda
To circulate around your body.
To pump blood throughout your body.
To get rid of harmful viruses.
To digest your food.
Questão 4
Questão
The hardest working organ in the circulatory system is...
Responda
The heart
The left ventricle
The right ventricle
The lungs
Questão 5
Questão
One way to keep homeostasis is by using a high concentration of carbon dioxide in the blood which triggers faster breathing so the lungs can get rid of carbon dioxide quickly.
Responda
True
False
Questão 6
Questão
Which of these is in the digestive system?
Responda
Heart
Lungs
Kidneys
arteries
Questão 7
Questão
Which of these is not in the circulatory system?
Responda
Heart
Ventricles
Arteries
Lungs
Questão 8
Questão
Which of these organs is in the respiratory system?
Responda
Lungs
Ribs
Oxygen
Carbon dioxide
Questão 9
Questão
About how long does it take for a cow to digest its food.
Responda
80 hrs
24 hrs
48 hrs
60 hrs
Questão 10
Questão
What is in your saliva that helps break down food?
Responda
teeth
enzymes
tongue
cavities
Questão 11
Questão
Whats the square area of your small intestine
Responda
10 square meters
250 square meters
550 square meters
100 square meters
Questão 12
Questão
Where does digestion start?
Responda
At the mouth
At lungs
At the small intestine
At your brain
Questão 13
Questão
Where does the esophagus lead to?
Responda
Your kidneys
Your stomach
Your intestines
Your lungs
Questão 14
Questão
Mucus is in your body to protect your stomach so that it doesn't digest itself.
Responda
True
False
Questão 15
Questão
What is at the beginning of the large intestine?
Responda
The heart
The small intestine
The cecum
The esophagus
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