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