Tag: zoology

Questions Related to zoology

Heat stroke is primarily caused by

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Excessive heat production

  2. The inability to sweat

  3. Conductive heat gain

  4. Inability to lose heat by radiation

Show answer
Correct Option: D
Explanation:
Heat stroke is caused by the overheating of the body due to prolonged exposure to high temperature. Heat is exchanged with the environment in four ways such as conduction, convection, radiation, and evaporation. Conduction refers to heat loss through direct contact with a cooler object. Convection is the dissipation of heat when relatively cool air passes over exposed skin. Radiation is the release of heat from the body directly into the environment. Evaporation through perspiration is the body’s most effective method of cooling under most circumstances. 
Therefore, the correct answer is option D.

Which part of the human body is first adversely affected by nuclear radiation?

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Eyes

  2. Lungs

  3. Skin

  4. Bone marrow

Show answer
Correct Option: C
Explanation:
On exposure to radiation burns the skin first and then other biological tissue. The radiation can be ultraviolet light and ionizing radiation that causes sunburn. High exposure to X-rays during diagnostic medical imaging or radiotherapy can also result in radiation burns. As the ionizing radiation interacts with cells within the body damaging them, the body responds to this damage, resulting in erythema i.e., redness around the damaged area. Radiation burns are often associated with radiation-induced cancer due to the ability of ionizing radiation to interact with and damage DNA, occasionally inducing a cell to become cancerous.
Therefore, the correct answer is option C.

What causes communicable diseases?

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Spoiled food item

  2. Unsanitary conditions

  3. Pathogens

  4. Dirty objects

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Correct Option: C
Explanation:

Explanation: Communicable diseases are caused by pathogens passed from one human to another. Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms.

What is a communicable disease?

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. It is a disease that can be spread to others and is contagious.

  2. It is a disease that cannot be spread and is caused by health habits and behaviours.

  3. It is a disease that is caused by bacteria in our environment.

  4. It is a disease that can be spread through food, animals, water, and the air.

Show answer
Correct Option: A
Explanation:

Explanation: Communicable diseases are caused by pathogens passed from one human to another.

Foot and mouth disease is a highly contagious disease almost exclusive to cattle, sheep, swine, goats, and other cloven-hoofed animals. It is caused by a

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Fungi

  2. Bacteria

  3. Protozoa

  4. Virus

Show answer
Correct Option: D
Explanation:

Foot-and-mouth disease or hoof-and-mouth disease is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovine. The virus causes a high fever for two or three days, followed by blisters inside the mouth and on the feet that may rupture.

Therefore, the correct answer is option D.

What kind of pathogen causes common cold ?

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Bacteria

  2. Virus

  3. Fungus

  4. Amoeba

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Correct Option: B
Explanation:

Explanation: The common cold is a viral infection of the upper respiratory tract. The most commonly implicated virus is a rhinovirus (30% to 80%).

Name the condition when the concentration of ketone body increases in urine.

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Acromegaly

  2. Diabetes mellitus

  3. Diabetes insipidus

  4. Cushing's disease

Show answer
Correct Option: B
Explanation:

Acidosis is due to rapid fat catabolism. This leads to high levels of acetoacetic acid, which is converted to acetone and beta-hydroxybutyric acid. These three molecules known as ketone bodies. The presence of excreted ketone bodies in urine and in expired air is used as one diagnostic test for diabetes mellitus. Thus, the correct answer is option B.

Non-communicable diseases are generally caused by:

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Behavioral risk factors

  2. Biological risk factors

  3. Environmental risk factors

  4. Both A and B

Show answer
Correct Option: D
Explanation:

Explanation: Non-communicable disease (NCD) is a medical condition or disease that is noninfectious or non-transmissible. NCDs can refer to chronic diseases which last for long periods of time and progress slowly.

The following are all common communicable diseases except

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Strep Throat

  2. MRSA

  3. Skin Cancer

  4. Mononucleosis

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Correct Option: C
Explanation:

Explanation: Communicable diseases are caused by pathogens passed from one human to another. Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms. Whereas, most skin cancers are caused by exposure to the sun.

The foods most often associated with food poisoning are:

zoology our health harmful microorganism for humans microbes and diseases categories of diseases

  1. Raw poultry and meat

  2. Unpasteurized milk

  3. Fresh produce

  4. All of the above

Show answer
Correct Option: D
Explanation:

Explanation: You can also get enteritis when you come into close contact with other people or animals that are infected. This is less common.