Moreover, the diverse brain regions associated with the sense of time (frontal cortex, basal ganglia, parietal cortex, cerebellum, and hippocampus) are responsible for receiving, associating and interpreting information in fractions of milliseconds, seconds and minutes.
Every day they charted whether upstairs and downstairs were either too cold, cold, warm, too warm, or hot. They tallied their results, learning that the two weeks of using both units; the house was a bit too warm. The month where only the downstairs unit was used, they noted downstairs and upstairs were warm. This did not support their prediction that it would be cold.
They began to wonder how upstairs could still be warm during the daytime when only using the downstairs unit. What is the best possible explanation for upstairs being warm throughout the winter month when they only turned on the downstairs unit?
Answer:
Convection
Explanation:
Hot air rises as it has less particles and more volume. This means that when they heat downstairs, the hot air rises to the top. Then, it cools and sinks because cold air has more particles and less volume. It heats up again from the downstairs unit and the cycle keeps going. This is called convection
Answer:
The volume of warm air expands and rises, warming the whole house through convection.
Explanation:
b. transmission electron microscope
c. scanning electron microscope
d. compound light microscope
Answer:
The correct answer is option b.
Explanation:
Transmission electron microscope or TEM emits electrons that pass through the vacuum tube of the microscope. TEM has an electromagnetic lens that focuses the electrons into a very fine beam.
The transmission electron microscope can be used to seeing very thin specimens of tissue sections, molecules, and other smaller structures that can not be seen by light microscope or dissecting microscope, in which electrons can travel creating a projection image.
Thus, the correct answer is option b.
B. lubricate the epiglottis
c. is wrong
D . push the cilia away from the lungs
Ans.
Mucus is an aqueous, slippery secretion produced by cells of mucous membranes and mucous glands. The entire respiratory system is lined with mucous membranes that continuously secrete mucus.
The mucus plays role in trapping the small particles, such as smoke, microbes, and pollen that enter to respiratory tract during inhalation. These trapped particles are then moved out of the nose with the help of cilia present in mucous membrane.
Thus, the correct answer is option A). 'trap particles from the air before they reach lung.'
The purpose of mucus present inside the respiratory system is to trap foreign particles from the air before they reach the lung.
Further Explanation:
Lungs have a powerful defense against respiratory system infections. The nasal cavity is lined with hairs to expel the trapped microbes by a sneeze. During respiration, the ingested air becomes humidified and warm. Such conditions allow the secretion and proper functioning of the mucus formed in the respiratory system. This prevents the delicate respiratory tissues from damage. Turbulence is created when the air enters the lungs due to the expansion of the diaphragm. Thus, the flow of turbulent air makes it difficult for these foreign particles to remain in the lungs.
The bronchioles consist of the cilia (contains goblet cells that secrete mucus) that helps in the up and down movement of the mucus in the conducting airways. The mucus, along with the entrapped foreign particles, can be expelled by coughing and swallowing. The alveolar macrophages help to phagocytize the alien microbes.
Learn more:
Answer Details:
Grade: High School
Subject: Health
Chapter: Immunology
Keywords:
Lungs, secretion, foreign particles, mucus, cilia, difficult, trapped microbes, sneeze, alveolar macrophages, microbes, coughing, swallowing.
pseudocoelomate
coelomate
Answer:
coelomate.
Explanation: