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EastWind [94]
3 years ago
10

Which type o go economic system do you think has been the most effective in promoting economic growth

Biology
1 answer:
allsm [11]3 years ago
7 0
Located throughout the body, veins return deoxygenated blood to the heart. Veins have valves to prevent backflow of blood and larger lumens (internal spaces) than arteries. The vein lumen has a smooth endothelium, or inner lining. The endothelium is part of the tunica intima, the innermost layer of the vein wall
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There are three essential components of all homeostatic control mechanisms; control center, receptor, and effector. The __(1)___
tresset_1 [31]

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.

5 0
3 years ago
Looking at a cell under a microscope, you note that it is prokaryote. How do you know?\
9966 [12]
C) The cell lacks a nucleus.

A eukaryotic cell has a nucleus, but prokaryotic cells do not.
4 0
3 years ago
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Why would we never run out of carbon dioxide is not carbon
alexandr1967 [171]
Why not turn it back I to gas
6 0
3 years ago
PLEASE HELP <br> here is my question
BaLLatris [955]
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2 years ago
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Choose the option that places the phases of a stem cell into the correct order.
shutvik [7]

Answer:

mitosis, gene expression, differentiation

Explanation:

3 0
3 years ago
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