Answer:
lift vs weight and thrust vs drag
I think it’s B I’m not sure
Answer:
The respiratory system enables oxygen to be taken into the body and it ensures the movement of carbon dioxide outside the body.
When we breathe in, our diaphragm moves downwards. Air enters the lungs through the larynx where it is filtered. from there it travels down the trachea, to the bronchi and then to the bronchioles. Alveoli are the air sacs where the exchange of gases takes place between the lungs and the blood. The alveoli pass oxygen into the blood and the blood passes carbon dioxide to the lungs. As we exhale, the diaphragm rises upwards causing the air to flow from the trachea to the larynx and exhalation from the mouth.
<u>Answer</u>:
The row C shows the correct labelling .
<u>Explanation</u>:
- <em>Neurons</em> are the cells of the nervous system that transmit and receive nerve impulses.
- The basic structure of a neuron consists of the <em>cell body, the axon, and the dendrites. </em>
- The<em> cell body</em> consists of the nucleus and thus contains the genetic material of the neurons. Emerging out from this are 2 types of extensions - dendrites and axon.
- The <em>dendrites</em> are involved in receiving messages from the other neurons whereas the <em>axon</em> is responsible for conducting the electrical impulses away from the cell body.
