Samacheer Kalvi 7th Science Term 3 Unit 5 Solutions

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Samacheer Kalvi 7th Science Term 3 Unit 5 Book Back Question and Answers/Solutions:

Samacheer Kalvi Class 7th Std Science Book Back 1 Mark and 2 Mark Question & Answers PDF uploaded and available below. Class 7th Standard New Syllabus 2022 to 2023 Book Back Question & Answer solutions available for both English and Tamil Medium. Class 7 New Science Book Term 3 Unit 5 – Animals in Daily Life Answers/Solutions Guide are provided on this page. 7th Std Science Book is of 1st Term consists of 7 units, 2nd and 3rd Term consists of 6 units. All Units/Chapters of Term 1st, 2nd, 3rd Science Book Back One, and Two Mark Solutions are given below.

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Samacheer Kalvi 7th Science Book Back Chapter 5 Term 3 Answers/Solutions Guide PDF:

7th Science Subject 1 Mark and 2 Mark Solutions Guide PDF available below. Click the Download option to download the book back 1 Mark & 2 Mark questions and answers. Take the printout and use it for exam purposes.

7th Science – Term 3 Chapter 5

Animals in Daily Life

 

I. Choose the correct answers :

1. __________ is the daily essential product which is obtained from cattle.
(a) Egg
(b) Milk
(c) Both of them
(d) None of them
Answer:
(b) Milk

2. Eggs are rich in __________
(a) Protein
(b) Carbohydrate
(c) Fat
(d) Acid
Answer:
(a) Protein

3. Which parts of the goat and sheep is used for manufacturing clothes?
(a) Leg
(b) Hand
(c) Hair
(d) Head
Answer:
(c) Hair

4. The cultivation and production of silk is known as __________
(a) Horticulture
(b) Floriculture
(c) Agriculture
(d) Sericulture
Answer:
(d) Sericulture

5. Sorter’s Disease is otherwise known as __________
(a) Asthma
(b) Anthrax
(c) Typhoid
(d) Cholera
Answer:
(b) Anthrax

II. Fill in the blanks:

  1. Proteins and __________ is rich in milk.
  2. __________ is extracted from bee hives.
  3. Anthrax is caused by __________
  4. __________ is the strongest natural fibre.
  5. Peace silk was produced in the year __________

Answer:

  1. Calcium
  2. Honey
  3. Bacillus anthracis
  4. Silk
  5. 1992




III. True or False – If False, give the correct answer :

1. Animals are the greatest gift of nature.
Answer:
True

2. Horse hair is used as bristles in small painting brushes.
Answer:
True

3. Wool is the fibre derived from the silk worm.
Answer:
(False)
Correct statement: Sill is the fibre derived from the silk worm.

4. Ahimsa silk is otherwise known as Mulberry silk.
Answer:
(False)
Correct statement: Ahimsa silk is otherwise known as peace silk.

5. Pencillin is the best medicine for curing Anthrax.
Answer:
True

IV. Match the following :

1. Cocoons Meat
2. Peace silk Poultry
3. Broilers Silk worm
4. Sweet Liquid Andhra pradesh
5. Goat Honey

Answer:

1 – iii; 2 – iv; 3 – ii; 4 – v; 5 – i

V. Analogy:

1. Water: pipe : Electric current: : ______
Answer:
Wire

2. Copper: conductor : wood: : _______
Answer:
Non conductor

3. Length : metre scale : current: : _________
Answer:
Ampere

4. Milli ampere: micro ampere: 10-3 A : : _________
Answer:
10-6 A

VI. Very short answer:

1. Write about any two dairy products.
Answer:

  1. Paneer
  2. Cheese

These two are dairy products. They are Nutritive food containing protein and calcium are made from milk.

2. What are the two types of fibres that are obtained from animals?
Answer:

  1. Wool – silk fibre is obtained from the cocoon of silkworm.
  2. Wool is got from fleece of sheep or goat

3. What is shearing?
Answer:
The fleece of the sheep is removed from its body. This is called shearing.

4. Write the symptoms of Anthrax.
Answer:

  1. The symptoms are fever, cough and shortness of breathe, similar to a typical pneumonia.
  2. Sometimes it may leads to nausea, vomiting and diarrhoea. .

5. Define – Sericulture.
Answer:

  1. Sericulture or silk farming is the cultivation of silk worm to produce silk.
  2. It is the rearing of silk worms to obtain silk.

6. How should we treat animals?
Answer:

  1. We must love and protect animals.
  2. We should safeguard them and treat them with care.

7. Who invented the Ahimsa silk?
Answer:
Kusuma Rajaiah, a Government officer from Andhra Pradesh proposed Ahimsa way of silk production for the making silks without killing the silkworms.

VII. Short Answer Questions :

1. What are the characteristics of wool? Give any three.
Answer:

  1. It is resistant to heat, water, wear and tear.
  2. It absorbs moisture.
  3. Wool insulates against cold. So wool is a good insulator.
  4. It does not wrinkle easily.

2. Write about any three uses of silk.
Answer:

  1. Silk has natural beauty and elegance.
  2. It gives comfort in warm weather and warmth during colder months.
  3. It is used in the manufacture of classical and high fashion clothes, modern dresses particularly silk sarees, the elegant of beautiful dresses.
  4. It is also used in household for making wall hangings, curtains, rugs and carpets.
  5. It is also being used in the manufacture of surgical threads for sutures.

3. What are the common diseases that are found in Poultry?
Answer:

Salmonellosis (diarrhoea) – Caused by bacteria
Ranikhat disease, (Fowl pox) – Caused by virus
Aspergilleses – Caused by fungus

X. Assertion and Reason :

1. Assertion : Wool is the fibre derived from the fur of animals.
Reason : Animals like goat, Yak, Alpaca and rabbit yields wool.
(a) Both Assertion and reasoning is correct
(b) Assertion is correct but reason in wrong
(c) Assertion is wrong but reason is correct
(d) Assertion and Reason are incorrect
Answer:
(a) Both Assertion and reasoning is correct

2. Assertion : Pencillin or ciprofloxacin.
Reason (R) : These medicines cures cow pox.
(a) Assertion is correct Reason is wrong
(b) Assertion is wrong reason is correct
(c) Assertion is wrong reason is also wrong
(d) Assertion is correct and reason is correct.
Answer:
(d) Assertion is correct and reason is correct.

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