Nares provide an opening for air to enter the nasal cavity.
Air enters the nasal cavity from the outside through two openings: the nostrils or external nares. The openings from the nasal cavity into the pharynx are the internal nares.
The nasal cavity and mouth join at the area in the back of the throat called the oropharynx . The pharynx is part of two body systems (the respiratory system and the digestive system) because it carries both air and food.
At the bottom the pharynx is divided in to two pipes- one for air and one for food. One pipe, the larynx, is for air only. It’s also called the voice box because it contains a pair of vocal cords that vibrate to make sounds when you talk.
A small flap of tissue called the epiglottis protects the larynx. When we swallow, the epiglottis covers the larynx to prevent food and liquid from going into the lungs.
The trachea (windpipe) is the part of the airway that continues below the larynx .
The carina is at the bottom of the trachea and is the point at which the trachea divides into the left and right main bronchus leading to the lungs.
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Answer:
2) The Bacterium that causes anthrax is Bacillus anthracis.
Explanation:
Anthrax is a deadly and infectious disease triggered by Bacillus anthracis. This bacterium is gram-positive and has a rod-shaped structure. In nature, it is usually found in soil and usually affects animals;
Another name for Anthrax is Sorters Disease.
Answer:
3) The row of trees or thick bushes that are planted to stop or slow down the wind is called: Shelterbreak.
Explanation
Shelterbreaks are very helpful to agricultural operations as they mitigate soil erosion. Reduced soil erosion in turn helps to increase crop yield because it guarantees that the nutrients in the soil are not washed away. When the wind gets too hot or too cold, shelterbreaks can help to reduce their side effects on livestock.
Answer:
4) The instrument that is used to find out the direction of the wind called an Anemometer. It is also used to measure the speed of wind.
Explanation
In agriculture, the anemometer helps to determine a proper time of the day for spraying or dusting crops. Environmentalists also use it to collect long-term data with regard to the propensity for high-speed winds and storms of an area.
Answer
5) All the above
Heat can be transferred in fluids via conduction, radiation and convection. The keys means of transferring heat in liquids however is via convection.
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EEG stands for Electroencephalogram. EEG measures electrical activity in the head related to the firing of a specific group of neurons reveals brain wave activity
When brief periods of EEG patterns are recorded in response to a specific event, the response is called an event-related potential or an evoked potential.
<span>This measure the electrical activity of the brain in response to a certain event stimulation.</span>
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