When you inhale or breathe in air, your diaphragm will contract or tighten and it will move downward. This will result to an increase in space in your chest cavity where your lungs will expand. The intercostal muscles located between your ribs will also help in the enlargement of the chest cavity. When your lungs expand, air will flow through your nose or mouth. The air will travel through your wind pipe and into your lungs. It will pass through your bronchial tubes and it will eventually reach and enters the<span> alveoli or the air sacs.</span>
W<span>hen you exhale or breathe out on the other hand, your diaphragm will relax and it will move upward into your chest cavity. The intercostal muscles will likewise relax resulting to the reduction of space in the chest cavity. When the space </span><span>in the chest cavity gets smaller, air that is carrying carbon dioxide will be forced out of your lungs and windpipe and it will eventually go out of your nose or mouth.</span>
Answer:
A. Live with little water needed
Answer:cells reproduce
cells are the basic structural and functional unit of life
Explanation:
Sebaceous glands
In addition to its role as a protective barrier, sebum also has antibacterial properties, conferred by oleic and palmitoleic acids, as well as antioxidants, conferred inter alia by vitamin E.
The level of secretion of sebum differs from one individual to another and will be at the origin of different types of skin texture: Dry skin or brittle hair will be the consequence of a low secretion of sebum, while a skin or greasy hair will be the consequence of a greater sebum secretion known as hyper-seborrhea. This hyper-secretion of sebum can also be responsible for skin disorders such as acne.
Sweat glands:
The sweat glands, which contribute entirely to the secretion of sweat, the evaporation of it leads to the cooling of the skin and plays a large role in the regulation of body temperature. In addition to their role in regulating body temperature, they also eliminate some metabolic waste.
This means that the sweat they excrete is a hypotonic fluid derived from the filtration of blood plasma, composed of water and electrolytes, allowing thermoregulation through transpiration.
What about hairs:
Hair and hair in general are vestiges of evolution. Because the Australopithecus (our distant prehistoric parents of 3 million years ago) like most mammals have a fur whose main function is to help maintain a constant body heat in very cold weather.
In case of excessive cold, it is the brain that is affected first: hypothermia can have very serious consequences. The blood vessels irrigating the brain regulate its temperature. If these cool too close to the outside air, the brain will suffer because security systems such as narrowing vessels are limited.
Answer:
where the heck is the drop down menu!!!!!!
Explanation:
