Answer:
irresponsible behavior for an adolescent is an act or action by a young person often in their teenage years deemed reckless, rash, careless or thoughtless. For example taking illegal drugs like cocaine.
A reflex is a natural movement brought on by a particular stimulus.
<h3>What is stimulus?</h3>
A stimulus in physiology is a perceptible alteration in the physical or chemical composition of an organism's internal or external environment. Sensitivity refers to an organism's or organ's capacity to recognize external stimuli and respond appropriately (excitability). As with touch receptors in the skin or light receptors in the eyes, sensory receptors can pick up information from both within and outside the body. Chemoreceptors and mechanoreceptors are examples of internal sensory receptors. A stimulus can trigger a response via stimulus transduction when it is recognized by a sensory receptor. The first element of a homeostatic control system is frequently an internal stimulus.
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A lack of intrinsic factor, leading to a deficiency of vitamin B12 and causing an appearance of large pale cells called macrocytes, is characteristic of pernicious anemia
<u>Explanation:</u>
Anemia is a state in which the body does not have sufficient healthful red blood cells. They give oxygen to body muscles. There are several kinds of anemia. Pernicious anemia is a reduction in red blood cells that transpired when the intestines not able to suitably receive vitamin B12.
One can receive this vitamin from consuming foods such as meat, chicken, invertebrate, eggs, and dairy goods. A unique protein, called intrinsic factor (IF), connects vitamin B12 so that it can be occupied in the intestines. When the stomach is not able to obtain sufficient intrinsic factors, the intestine cannot accurately grasp vitamin B12.
