Insectivorous means insect-eating, these plants derive most of their nutrition from the insects, that they trap and consume. These plants grow in humid areas, where plenty of sunlight and moisture is found. They are found in the nitrogen deficient soil. That is why they trap and digest insects to absorb nutrients. Venus flytrap, pitcher plant and cobra lily are some of the insectivorous plants’ names. They are often called Carnivorous plants.

Mode of nutrition in Pitcher plant: Plants which grow in nitrogen deficient soil derive their nitrogen from insects, e.g., pitcher plant etc.

Pitcher Plants : Leaf blade or lamina is modified into sac like structure known as pitcher. Leaf apex forms the lid of the pitcher which is lined by nectar secreting glands. Internal lining of the pitcher has digestive glands which secrete proteolytic enzymes to digest proteins of the trapped insects. To trap the insect pitcher has following modifications: 

(i) Insects are attracted by coloured lid and nectar.

(ii) Neck of the pitcher bears bristles pointing inward and downward which pierces the body of the escaping insects and kills them.

(iii) Inner portion of pitcher is slippery and contain acidic fluid by which insects slips down and gets drowned in the fluid. 

(iv) Once the insect is trapped and killed, it is digested and end products of digestion mainly amino acids are absorbed by the pitcher walls.

A Cyclone is a large scale air mass that rotates around strong centers of low pressure.

• Water vapors are formed when water is heated.
• This heat is released to atmosphere when water vapors convert to water during rains.
• The heat released, warms the air around and makes it to move up. This also results in decreased air pressure.
• Hence, cooler air from surrounding rushes to take the warm air’s place.
• This repeats till a low pressure system with surrounding high speed winds is created. This is called a Cyclone.
• Cyclone depends on wind speed, direction, temperature and humidity.

Cyclones are also called Hurricane in USA and Typhoon in Japan and Philippines

Translatory motion:

The motion in which all the particles of a body move through the same distance in the same time is called translatory motion.

There are two types of translatory motion:

1. Rectilinear motion
2. Curvilinear motion

Examples of translatory motion are:

A running boy, moving bus, walking cat running train etc.

Regular use of dental floss removes plaque, helping to prevent the buildup of plaque, which can lead to tartar. Simply flossing your teeth can make them look brighter by removing plaque and excess food particles that you may not see in the mirror or in areas that your toothbrush doesn’t reach. Think of a carpet before and after you vacuum. You may not really see the dust and dirt, but once you vacuum and the dust and dirt is removed, the carpet looks brighter. The same principle applies to flossing.

Top 5 Benefits of Flossing Teeth

• Preventative Oral Care. Millions of bacteria and other germs can be found in your oral cavity. ...
• Prevents Tartar Build-Up. It doesn't take long for plaque to accumulate on your teeth. ...
• Prevents Bad Breath. ...
• More Effective Than Brushing Alone. ...
• Prevents Gum Disease.

Tooth decay is damage to a tooth's surface, or enamel. It happens when bacteria in your mouth make acids that attack the enamel. Tooth decay can lead to cavities (dental caries), which are holes in your teeth. If tooth decay is not treated, it can cause pain, infection, and even tooth loss. Brushing after you eat or drink with a fluoride-based toothpaste can help keep your teeth clean and free of plaque that leads to tooth decay and cavities. Limit your intake of sugary foods and drinks: Candy, sodas and other sugary foods contain sugars that help plaque-forming bacteria survive in your mouth.

The main cause of bleeding gums is the buildup of plaque at the gum line. This will lead to a condition called gingivitis, or inflamed gums. ... This will lead to increased bleeding and a more advanced form of gum and jaw bone disease known as periodontitis.

Home Remedies for Bleeding Gums

1. Salt water rinse. Salt has anti-inflammatory and antiseptic properties that help reduce the swelling and combat infections that cause bleeding gums. ...
2. Honey. Take some raw honey on your fingertips and massage on your gums gently. ...
3. Cranberry juice. ...
4. Oil pulling. ...
5. Turmeric.

Cavities
Cavities are also called caries or tooth decay. These are areas of the tooth that have been permanently damaged and may even have holes in them. Cavities are fairly common. They occur when bacteria, food, and acid coat your teeth and form a plaque. The acid on your teeth starts to eat away at the enamel and then the underlying dentin, or connective tissue. Over time, this can lead to permanent damage.

Gum disease (gingivitis)
Gum disease, also called gingivitis, is inflammation of the gums. It’s usually the result of plaque building up on your teeth due to poor brushing and flossing habits. Gingivitis can make your gums swell and bleed when you brush or floss. Untreated gingivitis can lead to periodontitis, a more serious infection.

Periodontitis

As periodontitis progresses, the infection can spread to your jaw and bones. It can also cause an inflammatory response throughout the body.

Cracked or broken teeth
A tooth can crack or break from an injury to the mouth, chewing hard foods, or grinding the teeth at night. A cracked tooth can be very painful. You should visit your dentist right away if you’ve cracked or broken a tooth.

Sensitive teeth
If your teeth are sensitive, you might feel pain or discomfort after having cold or hot foods or beverages.

The human body is an incredible machine. One of the keys to the operation of the body is the heart. It beats about 101-thousand times a day, about 3-billion times in a lifetime and over that time it'll pump 800-million pints of blood. You breath about 23-thousand times a day. Body organs aren't all internal like the brain or the heart. There's one we wear on the outside. Skin is our largest organ adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.

Guard cells are specialized plant cells in the epidermis of leaves, stems and other organs that are used to control gas exchange. They are produced in pairs with a gap between them that forms a stomatal pore.

Chemical change

A change leading to the production of a new substance is known as a chemical change. These changes are irreversible. Some of the chemical changes occurring in our day to day life include rusting of iron, silver jewellery getting tarnished or copper articles getting covered by green layer.

• In case of rusting of iron, the iron reacts with the oxygen present in air and moisture and develops rust (hydrated iron (III) oxide).

• The food from mouth after swallowing passes into oesophagus and is pushed down to stomach by a special movement called peristalsis.
• This peristaltic movement takes place through out the alimentary canal which pushes the food in downwards direction.
• At some times the stomach is not ready to take up food causing vomiting, where food is expelled out from the oesophagus to mouth by reverse peristaltic movement.

Carbohydrates, when consumed, have to be digested into glucose. As glucose can be easily absorbed in blood, it provides energy to the body. Hence, when glucose is directly taken, it does not have to be digested and thus acts as an instant source of energy. Because it easily breaks down in the cell with the help of oxygen which provides instant energy to the organism. Glucose does not need digestion, it is directly absorbed into the blood.

Nutrients are the compounds in food that provide us with energy that facilitates repair and growth and helps to carry out different life processes.
Not all nutrients provide energy but are necessary for some form or the other. These nutrients are divided into two categories:

• Macronutrients, which are required by the body in large amounts.
• Micronutrients, which are required by the body in small amounts.

Symbiosis is the combination of two Greek words ‘Sym’ means ‘with’ and ‘biosis’ means ‘living’, which means living together. In symbiosis or mutualism two different types of organisms live and work together for their mutual benefit from each other. They share shelter and nutrients, e.g. Lichens. Lichens are composite organisms composed of fungus and alga. Fungus is a saprophyte and alga is an autotroph. The Fungus supplies water and minerals to the cells of the alga while the alga supplies food; prepared by photosynthesis.

A bird sitting on the back of a rhino is an example of symbiosis. The bird gets worms to eat, while the rhino gets rid of those worms.

Steps to test the presence of starch in leaves :

Step 1: A fresh leaf is taken.
Step 2: The leaf is boiled in water for few minutes to soften the cells in the leaf.
Step 3: Now, dip this leaf in iodine solution.
Step 4: The color of the leaf will changes into blue black color when iodine is added to it which shows the presence of starch in it.

Processing fibres into wool

Step I:     The first step is the removal of the fleece of the sheep along with a thin layer of skin. This process is termed as shearing. The hair provides woollen fibres that are then processed to obtain woollen yarn.
Step II:     The sheared fleece is systematically washed in tanks in order to remove the grease, dust and dirt. This is known as scouring.
Step III:    The scoured hair is then sorted and sent to a factory where hair of different textures are separated or sorted.

Step IV:    Here the small fluffy fibres, called burrs, are separated from the hair and the hair is scoured again and dried. The wool is then ready to be drawn into fibres.

Step V:      The fibres are dyed into various vibrant colours because the natural colour of the fleece is black, brown or white.

Step VI:     The fibres are then straightened, combed and finally rolled into yarn. The longer fibres are made into wool for sweaters whereas the shorter fibres are spun and woven into woollen cloth.

Onions grow as tubers under the soil whereas the coriander seeds are found on the tip of coriander plants.
Coriander is almost sweet  whereas onions are spicy.
Onion is a vegetable whereas coriander is a herb.
Both onion and coriander are used in cooking.
Both have the ability to change the smell of the food but onions can change the taste in addition. 

A storm is a disturbed state of environment creating severe weather conditions mainly high speed winds. A thunderstorm is a storm with sound and lightning and typically also heavy rain or hail.

The female silk moth lays eggs. The larvae also known as caterpillar or silkworm hatches out from the egg and grows in size. As soon as the caterpillar gets ready to develop into pupa, it first weaves a net to hold itself and swings its head from side to side in the form of the figure of eight (8).

During these movements the caterpillar secretes fibre made of a protein that hardens on exposure to air and becomes silk fibre. The caterpillar soon covers itself completely by a covering of silk fibres known as cocoon.

 The most common silk moth is the mulberry silk moth.