Tag: biology

Questions Related to biology

Animals which gives birth to the young one is called as invertebrates.

biology animal world oviparous and viviparous number and shape of cells unicellular and multicellular organisms diversity and classification in animals adaptations in animals

  1. True

  2. False

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Correct Option: B
Explanation:

Animals which give birth to young ones are known as mammals which are vertebrates.

So the correct answer is 'False'. 

Birds and snakes are oviparous animals.

biology animal world oviparous and viviparous number and shape of cells unicellular and multicellular organisms diversity and classification in animals adaptations in animals

  1. True

  2. False

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Correct Option: A
Explanation:
Oviparous are the animals which lay eggs. Snakes belong to class Reptilia and birds belongs to class Aves. They lay eggs. The eggs hatch by the warmth of the body. The yolk of the egg provides nutrition to the developing embryo.
So, the correct answer is option A.

Calf grows

biology animal world oviparous and viviparous number and shape of cells unicellular and multicellular organisms diversity and classification in animals adaptations in animals

  1. Inside the cow's body

  2. Outside the cow's body

  3. Inside the kangaroo's body

  4. Outside the kangaroo's body

Show answer
Correct Option: A
Explanation:

Cow is a placental mammal. Once it gives birth to a calf it grows outside the cow's body.

Young one of Kangaroo is known as Joey.
So the correct answer is 'Outside the cow's body'. 

Viviparity is found in

biology animal world oviparous and viviparous number and shape of cells unicellular and multicellular organisms diversity and classification in animals adaptations in animals

  1. Sharks

  2. Lizards

  3. Frogs

  4. Birds

Show answer
Correct Option: A
Explanation:

In viviparous animals, females give birth to young ones. The development of zygote takes place inside the female's body. Females deliver young ones and the chances of survival of offsprings are more. Mammals (except egg-laying mammals), like whale, shark, mouse, humans are examples of viviparous animals.

So, the correct answer is 'Sharks'.

Excess intake of the following causes obesity

biology diet, drugs and disease effect on general health growth and development in young people nutrient deficiency diseases diseases caused by changes in lifestyle nourishment and malnutrition

  1. Vitamins

  2. Proteins

  3. Carbohydrates

  4. Minerals

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Correct Option: C

Junk food eaten frequently leads to 

biology diet, drugs and disease effect on general health growth and development in young people nutrient deficiency diseases diseases caused by changes in lifestyle nourishment and malnutrition

  1. Good health

  2. Obesity

  3. Overnutrition

  4. None of these

Show answer
Correct Option: B
Explanation:

  • Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health. 
  •  People are generally considered obese when their body mass index (BMI), a measurement obtained by dividing a person's weight by the square of the person's height, is over 30 kg/m2; the range 25–30 kg/m2 is defined as overweight. 
  • Obesity is most commonly caused by a combination of excessive food intake particularly fat and sugars, but don't burn off the energy through exercise and physical activity, it will be stored by the body as fat. Hence, Junk food eaten frequently leads to Obesity.
 So, the correct answer is 'Obesity'.

To  avoid obesity you should eat junk food.

biology diet, drugs and disease effect on general health growth and development in young people nutrient deficiency diseases diseases caused by changes in lifestyle nourishment and malnutrition

  1. True

  2. False

Show answer
Correct Option: B
Explanation:
  • Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health. 
  •  People are generally considered obese when their body mass index (BMI), a measurement obtained by dividing a person's weight by the square of the person's height, is over 30 kg/m2; the range 25–30 kg/m2 is defined as overweight. 
  • Obesity is most commonly caused by a combination of excessive food intake particularly fat and sugars, but don't burn off the energy through exercise and physical activity, it will be stored by the body as fat. Hence, To avoid obesity you should not eat junk food.
So, the correct answer is 'False'.

Obesity is due to extra consumption of

biology diet, drugs and disease effect on general health growth and development in young people nutrient deficiency diseases diseases caused by changes in lifestyle nourishment and malnutrition

  1. Carbohydrates

  2. Fats

  3. Proteins

  4. Both A and B

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Correct Option: D

Excess of fat rich food may result in

biology diet, drugs and disease effect on general health growth and development in young people nutrient deficiency diseases diseases caused by changes in lifestyle nourishment and malnutrition

  1. Defects in vision

  2. Scurvy

  3. Obesity

  4. Rickets

Show answer
Correct Option: C
Explanation:

Fats and carbohydrates are among the three vital macronutrients, the other being proteins, that are needed to keep your body healthy. While eating moderate amounts is beneficial, excessive intake of fats and carbohydrates can cause complications such as cancer and obesity. 

Scurvy is a disease caused by a diet that lacks vitamin C (ascorbic acid). Defect of vision is caused by deficiency of vitamin A. Rickets caused by lack of vitamin D. 
Therefore, the correct answer is option C.

The body mass index (BMI), or Quetlet index, is a heuristic proxy for human body fat based on an individual's weight and height. BMI does not actually measure the percentage of body fat. Body mass index is defined as the individual's body weight divided by the square of his or her height. The formula universally used in medicine produce a unit of measure of kg/$m^2$. Archana, who is 32 years old, consumes 1900 calories per day and does no exercise. She weighs 150 pounds and she is 5.3 feet tall. Choose the correct answer regarding her BMI. [Note : 1 pound = 0.45 kg; 1 foot = 30.4 cm.]

biology diet, drugs and disease effect on general health growth and development in young people nutrient deficiency diseases diseases caused by changes in lifestyle nourishment and malnutrition

  1. Archana's BMI is 40.4 and she is over-weighed.

  2. Archana's BMI is 26.01 and she is over-weighed.

  3. Archana's BMI is 40.4 and she is obese.

  4. Archana's BMI is 28.86 and she is obese.

Show answer
Correct Option: B