Answer:
Less energy is available to the upper trophic levels.
Answer:
It has gotten worse.
Explanation:
In the past 30 years, air quality in the United States has declined almost exponentially. Pollution is the main reason for the declination of air quality in the United States, but there are different kinds of pollution, including light pollution, noise pollution, air pollution, water pollution, etc. Air pollution can be caused by primary or secondary pollutants. Primary pollutants include carbon, nitrogen, and sulfur oxides as well as just general particles in the air. Secondary pollutants are formed when pollutants are exposed to sunlight via chemical reactions.
Body temperature control is an example of negative feedback, a process by which the body responds to a stimulus by correcting the change and bringing the body back to the original setting.
What is stimulus ?
A stimulus is a noticeable change in the internal or external environment of an organism's physical or chemical composition. Sensitivity is the capability of an organism or organ to perceive external stimuli and to respond appropriately to them.
The hypothalamus controls your body temperature in a manner similar to how a thermostat controls the temperature in your home. It does this by responding to both internal and external stimuli and making adjustments to keep your body's temperature within one or two degrees of 98.6 degrees.
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It is classified as a coral
The lymph vessel flows from the tissue to the lymph nodes, flow to the largest lymphatic vessel in the thorax called thoracic duct, then drain to the subclavian vein.
The lymphatic vessel is a thin tubular organ made of the endothelial cell. It has a valve like the vein to prevent backflow of lymph. Lymphatic vessel delivers the lymph through the body and has a role in the immune system.
