| 1 |
A cockroach has?
|
Three pairs of walking legs <br>
Two pairs of walking legs <br>
Four pairs of walking legs <br>
One pair of walking legs<br>
|
| 2 |
What is the gas that humans breathe?
|
Carbon dioxide <br>
Oxygen <br>
Carbon monoxide <br>
Nitrogen <br>
|
| 3 |
Which organ is sometimes removed from the body and replaced with a new one?
|
Heart <br>
Intestines <br>
Stomach<br>
Lungs<br>
|
| 4 |
What do we call the tubes where food is digested?
|
Intestines<br>
Heart <br>
Stomach <br>
Lungs<br>
|
| 5 |
What part of the body exchanges gases with air?
|
The liver<br>
Stomach<br>
Lungs <br>
Intestines <br>
|
| 6 |
What do we call the muscular bag inside the body?
|
The liver<br>
Intestines<br>
Stomach <br>
Lungs<br>
|
| 7 |
What do we call the tubes that carry blood towards the heat?
|
Arteries <br>
Intestines <br>
Veins <br>
None of these<br>
|
| 8 |
What is the black part of the eye called?
|
Pupil<br>
Pores <br>
iris <br>
None of these<br>
|
| 9 |
How many ribs does a human have?
|
22
24
26
28
|
| 10 |
How many senses are there?
|
4
5
6
7
|
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