Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology food and human health diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

Tobacco addicted people felt restless, if _____________

  1. They consume more tobacco.

  2. They do not get tobacco.

  3. They smoke and chew tobacco together.

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tobacco contains nicotine, which is highly addictive. When a person addicted to tobacco is deprived of it, they experience withdrawal symptoms, which often manifest as restlessness or irritability.

Multiple choice biology food and human health diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

Tobacco addiction causes

  1. Bronchitis

  2. Gastric ulcers

  3. Emphysema

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Tobacco is injurious to health as it can result in the following complications:
1. Tobacco contains carcinogenic substances, i.e, substances which can cause cancer. Various cancers like oral cancer, lung cancer, etc, have been associated with tobacco.
2. It is a major risk factor for heart diseases, lung disorders like emphysema, strokes, gastric ulcer, bronchitis. 
3. It contains addictive drugs like nicotine. It makes the person depend on tobacco psychologically and physically.
4. It may also result in impotency or infertility in individuals.
So, the correct option is 'All of these'.
Multiple choice biology animals in daily life introduction to reproduction poultry farming food from animals

Carefully read the following information to answer the question -


An egg farmer is experimenting with different feed rations with the aim of increasing his production whilst reducing the cost of the feed per egg produced. The data from the two feeding experiments are given below.

Experiment 1

Protein concentration in feed (%) 10 11 12 13 14 15 16
Total vitamin level (mg/kg) 100 100 100 100 100 100 100
Cost of feed ration per 100 hens per day 6.00 7.00 7.50 8.00 8.50 8.75 9.00
Number of eggs per 100 hens per day 70 70 75 80 85 80 80

Experiment 2

Protein concentration in feed (%) 14 14 14 14 14 14 14
Total vitamin level (mg/kg) 50 75 100 125 150 175 200
cost of feed ration per 100 hens per day 8.00 8.25 8.50 8.75 9.00 9.25 9.50
Number of eggs per 100 hens per day 70 80 85 90 95 95 95


Which feed composition gives the least cost per egg produced?

  1. Protein concentration (%) - 16; Total vitamin level (mg/kg) - 100

  2. Protein concentration (%) - 14; Total vitamin level (mg/kg) - 50

  3. Protein concentration (%) - 14; Total vitamin level (mg/kg) - 100

  4. Protein concentration (%) - 14; Total vitamin level (mg/kg) - 150
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In Experiment 1-At protein concentration 16% vitamin level 100, the cost of feed is 9.00 and the number of egg produced is 80 per 100 hens

In experiment 2 - At protein concentration 14%, vitamin level 150, the cost of feed is 9.00 and the number of eggs produced is 95, an increase of 15 per 100 hens.
So, the correct answer is 'Protein concentration (%) - 14; Total vitamin level (mg/kg) - 150'

Multiple choice biology animals in daily life introduction to reproduction poultry farming food from animals

Read the following statements regarding poultry farm management.
(i) Poultry birds include chicken, ducks, turkey and geese.
(ii) Brooder house should be crowd-free, rain proof and protected from predators.
(iii) The most common egg-type variety used for commercial production throughout the world is single comb white leghorn and its various strains.
(iv) Approximately 14 to 16 hours of light including daylight are required for optimum egg production.
Which of the above statements are correct?

  1. (iii) and (iv)

  2. (i), (ii) and (iii)

  3. (i), (iii) and (iv)

  4. (i), (ii), (iii) and (iv)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All the statements given above regarding poultry farm management are correct . Poultry farm includes chickens, ducks, turkey and geese. Brooder house are typically wooden movable structures heated enclosure by electric for raising baby poultry. It is crowd free , rainproof and protected against predators . This will led to higher rate of egg production.  The most common type of egg variety used for commercial production are comes from Leghorn which requires a photoperiod of 16 hours for optimum egg production . Reduction in photoperiod leads to reduce egg yield. 

So, the correct option is 'Option D' .

Multiple choice biology animals in daily life introduction to reproduction poultry farming food from animals

Carefully read the following information to answer question


An egg farmer is experimenting with different feed rations with the aim of increasing his production whilst reducing the cost of the feed per egg produced. The data from the two feeding experiments are given below.

Experiment 1

Protein concentration in feed (%) 10 11 12 13 14 15 16
Total vitamin level (mg/kg) 100 100 100 100 100 100 100
Cost of feed ration per 100 hens per day 6.00 7.00 7.50 8.00 8.50 8.75 9.00
Number of eggs per 100 hens per day 70 70 75 80 85 80 80

Experiment 2

Protein concentration in feed (%) 14 14 14 14 14 14 14
Total vitamin level (mg/kg) 50 75 100 125 150 175 200
cost of feed ration per 100 hens per day 8.00 8.25 8.50 8.75 9.00 9.25 9.50
Number of eggs per 100 hens per day 70 80 85 90 95 95 95


What are the independent variables in each of the two experiments?

  1. Experiment 1 - Maximum daily egg production; Experiment 2 - Maximum daily egg production

  2. Experiment 1 - Protein concentration in the feed; Experiment 2 - Total vitamin level in the feed

  3. Experiment 1 - Total vitamin level in the feed; Experiment 2 - Protein concentration in feed

  4. Experiment 1 - Cost of feed ration per egg produced; Experiment 2 -Cost of feed ration per egg produced
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In experiment 1 the protein concentration is controlled or changed. So as to check the effect on cost of feed ration and number of eggs produced. Therefore it an independent variable

In experiment 2 total vitamin level in the feed is controlled or changed. So as to check the effect on cost of feed ration and number of egg produced. Therefore it is an independent variable.
So, the correct answer is 'Experiment 1 - Protein concentration in the feed; Experiment 2 - Total vitamin level in the feed'

Multiple choice biology animals in daily life introduction to reproduction poultry farming food from animals

The chances of contracting bird flu from a properly cooked (above $100^0C$) chicken and egg are

  1. very high

  2. high

  3. moderate

  4. none.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chicken and other poultry products are safe to eat if cooked properly. While cooking poultry to 70 degree celsius , it kills the H5N1 virus which causes bird flu. Therefore, it is recommended to cook meat above 74 degree celsius to kill all food borne pathogens. 

So, the correct option is 'Option D' .

Multiple choice biology animals in daily life introduction to reproduction poultry farming food from animals

The best layers chicken is

  1. Leghorn

  2. Rhode island red

  3. Brahma

  4. Kadaknath
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The Leghorn is a breed of chicken originating in Tuscany, in central Italy. 
  • Leghorns are good layers of white eggs, laying an average of 280 per year and sometimes reaching 300–320, with a weight of at least 55 g. 
  • White Leghorns have been much used to create highly productive egg-laying hybrids for commercial and industrial operations.
  •  Hence, The best layers of chicken are Leghorn.
  • So, the correct answer is 'Leghorn'.
Multiple choice biology animals in daily life introduction to reproduction poultry farming food from animals

Farm eggs are advantageous because?

  1. They are laid very fast

  2. Their shelf life is longer

  3. They are more nutritious

  4. They hatch without incubation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Farm eggs are advantageous because they are more nutritious as the chickens in the farm are fed with food sources of a higher quality.

So, the correct option is ' they are more nutritious'.

Multiple choice biology animals in daily life introduction to reproduction poultry farming food from animals

Breeding in Fowl is done between.

  1. Six month old hen and cock

  2. One year old hen and two year old cock

  3. Two year old hen and one year old cock

  4. Two year old hen and cock
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For effective breeding in poultry, healthy and mature birds are required. Six months is generally considered the age of sexual maturity for many fowl breeds.