Answer:
Our sense organs are very important for us as they allow us to connect with the world. Our five sense organs a
Answer: The epithelial cells
The endothelial cells .
<u>The epithelial cells are pulmonary while the endothelial are vascular</u>
These cells exist as tight-two celled structure for gas exchange in the lungs
They are moistened , thin layered , and use diffuse gradient of oxygen and carbon dioxide to move gases across their wall.s
They are well lined with blood capillaries for rapid absorption of gases into the blood stream,
Answer:
A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion. ... Fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.
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Explanation:
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It contains dissolved substances, cells and cell fragments.
The other parts of blood are:
Red blood cells - Carry blood around the body
White blood bells - Fight against bacteria and diseases
Platelets - Small fragments of bells. They are involved in forming blood clots.
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Answer:
reduce the loss of body heat to the environment
Explanation:
- Convection is the heat loss by air or water moving across the skin surface.
- When exposed to cold air, cover exposed skin and take shelter from the wind.
- The thicker the insulating clothing layer, the better it prevents convection.
- Conduction is the direct contact with an object.
