In humans, during respiration, oxygen is taken in and carbon dioxide is given out. Which one of the following organ is a part of the respiratory system?
Lungs
Stomach
Heart
Brain
Blood in our body is filtered by the
kidneys
heart
blood vessels
veins
We breathe in oxygen from air and breathe out carbon dioxide. Where does this carbon dioxide come from?
blood
bones
Our stomach is located
in the head
in the left side of the abdomen
in the right side of the abdomen
below the abdomen
The function of hair inside our nose is
to make it beautiful
to prevent dust particles enter our lungs
not to let too much air go inside
to keep our lungs cold
Which one of the following correctly represent the passage of food in our body?
Mouth → Stomach → Food Pipe → Small Intestine
Mouth → Food Pipe → Stomach → Small Intestine
Mouth → Stomach → Small Intestine → Food Pipe
Mouth → Small Intestine → Food Pipe → Stomach
We have ________ Kidneys.
one
two
three
four
Which one of the following diagram correctly illustrates the passage of oxygen in the respiratory system?
Nose → Lungs → Wind pipe → Blood
Nose → Blood → Wind pipe → Lungs
Nose → Blood → Lungs → Wind Pipe
Nose → Wind Pipe → lungs → Blood
The inner layer of the stomach releases
water
minerals
digestive juices
Which one of the following organs is used for respiration by a tadpole?
Skin
Gills
Book lungs
