Answer:
The receptor senses changes in the environment and responds by sending information (input) to the control center along the ascending pathway. The control center analyzes the input, determines the appropriate response, and activates the effector by sending information along the descending pathway. When the response causes the initial stimulus to decline, the homeostatic mechanism is referred to as a negative feedback mechanism. When the response enhances the initial stimulus, the mechanism is called a positive feedback mechanism. Negative feedback, mechanisms are much more common in the body.
Explanation:
Homeostasis is the adaptation of living organisms or systems to new conditions in the environment by auto-regulation. Through this mechanism, an equilibrium state can be maintained in spite of any changes. This adjustment in the physiological system is called <em>homeostatic regulation</em> and it is composed of three parts: the receptor, the control center, and the effector.
The receptors receive information from the environment about something changing and transmit that information to the central nervous system (control center). This pathway is defined as the ascending pathway. Information is processed in the control center which handles many sensory signals, evaluates them, compares them and uses them for decision making. After that, an efferent neuron is stimulated to carry information from the central nervous system to the effector cells of the target organ. The effector may be muscle or glandular tissue. This pathway is defined as the descending pathway. Finally, the target organ responds.
There is negative feedback when the response declines the initial stimulus, which is the <u>most common mechanism</u> in the body. There is positive feedback when the response enhances the initial stimulus, which might be very nocive to the organism.
The answer would be NUCLEIC ACIDS .
There are four macro-molecules of life:
Carbohydrates - they are organic compounds and come in the form of monosaccharides, used for short-intermediate-term energy storage.
Nucleic Acids - includes DNA and RNA. They contain the genetic instructions used in the function and development of all living things.
Lipids - It is also used for energy storage.
Proteins - composed of amino acid polymers used in maintaining bones, blood, organs and the like.
When food reaches the small intestine, bile is released from the pancreas. false
While food moves through the small intestine, three organs that are not part of the alimentary canal help the digestion process: The liver makes bile, which helps the body absorb fat. It's located in the top right of the belly. The gallbladder stores bile until it is needed
What happens when the <u>food reaches the stomach</u>?
After food enters your stomach, the stomach muscles mix the food and liquid with digestive juices
To know more about bile here
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Answer:
By comparing the plants and animals we've bred for thousands of years for the perfect amount of food and parts we like. It's possible to create perfect humans, and to make humans immune to disease and genetic disabilities
Explanation:
