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melamori03 [73]
3 years ago
13

An animal science career in the marketing merchandising and sales representatives category is: Group of answer choices Livestock

buyer. Poultry farmer. Veterinarian. Agricultural Education teacher.
Biology
1 answer:
EleoNora [17]3 years ago
8 0

Answer:

Veterinarian

Explanation:

they study animal science

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Several bodily responses are described below. For each response, determine what caused the change in
EastWind [94]

Answer:

  1. Body starts to sweat: The core body temperature exceeded the set range of 35 degrees to 41.5 degree celsius
  2. Breathing rate increases: Cells are not receiving adequate oxygen to produce adequate energy.
  3. Amount of saliva produced changes: Saliva is produced in response to pH changes in the mouth or the intake of food.
  4. Body starts to shiver: Core temperature dropped below the set range of 35 to 41.5 degree celsius.

Explanation:

Homeostasis:

Homeostasis is the physiological process of regulating the internal environment of the body against fluctuations in the external environment.

Homeostasis systems in the body follow the following basic scheme (from 1 to 4):

  1. Stimulus
  2. Sensor
  3. Control
  4. Effector

Various control centers in the body sense varying body conditions and in turn activate certain effector mechanisms to regulate the changing conditions.

Thermoregulation:

  • Thermoregulation is the control and regulation of the optimum core temperature of the body between the range 35 to 41.5 degree celsius.
  • The control center is the hypothalamus, a part of the brain that receives signals from receptors in the body and initiates the appropriate response.
  • If the core temperature exceeds the optimum range, two mechanisms are initiated:
  1. The blood vessels towards the skin and extremities dilate, increasing the blood flow, allowing heat loss to the environment.
  2. Sweat glands are activated, evaporation of sweat produces a cooling effect.
  • If the core temperature decreases, again, two mechanisms are activated:
  1. Blood vessels to the extremities constrict to prevent heat loss; those towards the core dilate to provide maximum heat to the internal organs.
  2. Shivering mechanisms (involuntary muscle contractions) are activated that generate heat.

Respiratory Homeostasis:

During exercise or strenuous physical activity, our cells need to produce a large amount of energy through cellular respiration. Since, cellular respiration requires oxygen, more and more oxygen needs to be supplied to the cells. A low oxygen signal detected by the hypothalamus (control center in the brain) increases the breathing rate to ensure that sufficient oxygen reaches the cells.

Oral homeostasis:

The salivary glands maintain the homeostasis of the oral cavity. Saliva is not produced in response to food but to maintain the pH of the oral cavity to protect the teeth and enamel. Saliva contains the enzyme amylase which digests carbohydrates in the mouth. Therefore, the production of saliva increases in response to smell, sight and taste of food.

8 0
3 years ago
Read 2 more answers
g Type I diabetes is caused by destruction of the beta cells of the pancreas, the cells that produce insulin. In most cases, the
vodka [1.7K]

Answer:

it is a failure of tolerance (self-tolerance) and specificity (recognition)

Explanation:

Type 1 diabetes is a chronic disease caused by the selective destruction of β cells that are involved in the production of insulin in the pancreas. Type 1 diabetes can be classified into two types: Type 1A diabetes (the immune form of the disease) and Type 1B diabetes (the non-immune form of the disease). Type 1A diabetes is considered an autoimmune disorder where immune responses against pathogens suffer a failure of tolerance to antigens in the β-cells of the pancreatic islets. Thus, Type 1A diabetes is characterized by the process of recognition of β-cell antigens (autoantigens) by the immune system. This disease is often caused by genetic factors associated with mutations in the human leukocyte antigen (HLA) class II region located on chromosome 6.

4 0
2 years ago
During dna replication
11111nata11111 [884]
During DNA replication, <span>the template strands must separate so that both can be copied.</span>
6 0
3 years ago
Lipids such as cholesterol are made by the
Feliz [49]
The main function of the smooth ER is to make hormones and lipids.
5 0
3 years ago
A good model of the cell membrane would be
mixer [17]

C. A wall of stones and mortar

This would act as a model describing the cell membrane.

Explanation;

A cell membrane is made up of a phospholipid bilayer with embedded proteins.

A cell membrane hold the different components of the cell together and to protect it from the environment outside the cell. It acts as a boundary between the inside environment and the outside environment of a cell.

It regulates the materials that enters and exits the cell; through selective movement of substances in and out of the cell.

6 0
3 years ago
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