A - Read below
Diffusion is simply particles spreading around. Think of it like spraying perfume in a room. Where the person sprayed the perfume would be a high concentration as there is a lot of that perfume there. However, on the other side of the room there would be little to no perfume. So the perfume spreads around until it is evenly distributed in the room.
False. Oxygen is absorbed in the alveoli sacs of the lungs.
Upon inhalation Air must first pass through the larynx and down to the trachea, which then splits off into two separate bronchial tubes, the bronchial tubes divide into smaller air passages known as the bronchi and those into even smaller bronchioles. The bronchioles end in tiny sacs called the alveoli which transfer the oxygen from the inhaled air to the bloodstream.
A. near the boundary ocean crust and continental crust.
Answer:
Retina; Cochlea
Explanation:
The retina is to the eye as the cochlea is to the ear.
The retina is a thin light sensitive tissue of the eyes, it lines the inside the back of the eyes. The retina receives light focused by the light and converts the light into neural impulses, and this impulses are further sent to the brain for visual recognition or perception.
The cochlea is a watery fluid found in the inner part of the ear and functions majorly for hearing. The cochlea transfers pressure waves into nerve impulses. The watery fluid moves in response to external vibration from the middle ear, this further convert motion to electrical signals to electrochemical impulses that are further processed by the brain.
<h2>They produce oxygen for the other living organisms </h2>