Question

Question and Answer:

(a) Write any two properties of silk ?
(b) Name the type of teeth found in human beings. Mention their function

(c) Name the steps involved in the process of digestion ?

(d) What is rumination ? Name two ruminants.

(e) Describe the steps involved in the processing of fibres into wool?​

Answer 1

Answer:

a) 1 Silk fibres are smooth and straight

2 Silk is a lightweight, is flexible and has some elasticity

b) Incisors are the teeth that you use to bite into your food. Canines - Your canines are the next teeth that develop in your mouth. You have four of them and they are your sharpest teeth, used for tearing apart food. Premolars - Premolars are used for tearing and crushing food

c)The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.

b)Regurgitation is referred to as rumination. The swallowed meal is taken back to the mouth during rumination, and then swallowed and digested again after chewing. Ruminant animals are those that are capable of rumination. Cows, deer, goats, giraffes, and other ruminant animals are examples.

e)The steps involved for processing fibres into wool are shearing, scouring from sheep, sorting, dyeing, straightening, rolling and combing. The first step of processing wool, that is, shearing involves the removal of the fleece of the sheep along with a thin layer of skin.

Answer 2

a.

• Silk has a smooth, soft texture that is not slippery, unlike many synthetic fibers.

• Silk is one of the strongest natural fibers, but it loses up to 20% of its strength when wet .

b.

four types of teeth:

1. four types of teeth: Incisors
2. four types of teeth: IncisorsCuspids
3. four types of teeth: IncisorsCuspidsPremolars
4. Molars

• Incisors - You use them to rip and tear food
• Cuspids -Used for the gripping .
• Premolars - are used for crushing food.
• Molars - are also used for chewing and grinding food

C.

The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation .

D.

A ruminant is an ungulate that eats and digests plant-based food such as grass. Ruminating mammals include cattle, goats, sheep, giraffes, bison.

E.

The steps involved for processing fibres into wool are shearing, scouring from sheep, sorting, dyeing, straightening, rolling and combing.