SOLUTION

No, excess intake of fats is not healthy. It is harmful for the body. It gets deposited in the body and makes the person obese. It also results in several diseases.

SOLUTION

The role of a dietician is to tell us about which foods to eat and how to have a balanced diet. He/she focuses on proper food and nutrition for good health. Heart patients, diabetics and overweight people should specially consult a dietician.

SOLUTION

Malnutrition is a condition that occurs when a person does not get enough protein and carbohydrates in his or her diet. Malnutrition results in weakness and the retardation of mental and physical growth of a person.

SOLUTION

Different food items are rich in different types of nutrients.

Thus, by eating more than one dish in a single meal, our body gets more than one nutrients and makes us healthy.

SOLUTION

French fries are rich source of fats. Whenever a food item rich in fats is rubbed against paper, it leaves an oily patch on the paper. As a result, the light can pass through the patch on the paper, making paper translucent. This is also used as a test to detect the presence of fats in the food items and is called as grease spot test.

SOLUTION

Both carbohydrates and fats are energy giving foods. Moreover, a gram of fats yield more energy as compared to a gram of carbohydrates. Though groundnuts are rich source of fats, but simple carbohydrates such as glucose serve as instant energy source. Thus, glucose would help Garett by providing the required instant energy to do work.

SOLUTION

A food item may consist of more than one nutrient. When a specific nutrient is in more quantity than other nutrients, food item becomes enrich in that nutrient. Meat and fish contain fats, Vitamin A, iron and are highly rich in proteins. Since proteins are called as body building nutrients, so the food items like meat and fish which are rich sources of proteins are thus called body building foods.

SOLUTION

Running is a muscular activity and requires energy. The food we eat provides energy to our body for various metabolic activities. Since, carbohydrates and proteins are energy giving and body building components of a healthy diet, so the food rich in carbohydrates and proteins will form a more suited diet plan for Rohan. Hence his mother's diet plan is inappropriate for him.

SOLUTION

Lack of nutrients for a long period of time causes deficiency diseases of the corresponding nutrient. Vitamin A helps in keeping the eyes healthy. Hence, Amya should include Vitamin A rich foods in her diet like carrot, papaya, green vegetables, etc.

SOLUTION

SOLUTION

This is a chick.

This is a hatchling.

SOLUTION

It is a hatchling.

SOLUTION

Hen is the grown up stage. It is not a part of the egg.

SOLUTION

1. disagree
2. agree
3. agree
4. disagree
5. agree

SOLUTION

1. egg
2. maggot
3. pupa
4. adult
5. 75-100

SOLUTION

1. white
2. 500
3. eggs
4. flying
5. white

SOLUTION

Egg is the first stage of the life cycle of a housefly.

SOLUTION

SOLUTION

There are four stages involved in life cycle of a housefly, they are

1. Egg
2. Maggot
3. Pupa
4. Adult

SOLUTION

There are four stages involved in the life cycle of a housefly.

SOLUTION

No, all the eggs laid by a female frog do not undergo development.

SOLUTION

A tadpole breathes through gills.

SOLUTION

The next stage after the tadpole is late tadpole.

SOLUTION

A tadpole looks like fish.

SOLUTION

Frog survives on small water plants and insects.

SOLUTION

Frogs are found both in water and on land.

SOLUTION

A male frog produces the crocking sound.

SOLUTION

Frogs are usually found in ponds in large numbers.

SOLUTION

1. The females lay egg cases containing about 20-40 eggs in dark and humid places.
2. The egg cases look like capsules and are generally brown in colour.
3. The nymph keeps on growing and shed its skin many times before developing into a cockroach.
4. Nymphs develop into fully grown cockroaches in 9-13 months.
5. Nymphs are born without wings.

SOLUTION

1. Agree
2. Agree
3. Disagree
4. Agree
5. Agree

SOLUTION

1. Egg
2. Nymph
3. Egg case
4. Cockroach
5. Adult

SOLUTION

1. brown
2. 6-9 mm
3. species
4. three
5. white

SOLUTION

There are 20-40 eggs present in each egg case of a cockroach.

SOLUTION

The elephants have big ears. These ears work like fans and help reduce their body temperature. The large area of the ears helps to cool down the body.

SOLUTION

Asian Elephants have a finger like feature at the end of their trunk which they use to grab objects. Their African cousins have two of these fingers.

SOLUTION

Elephants love to play in mud and water. The mud keeps their skin cool and insect free.

SOLUTION

The elephants sleep only for 2 to 4 hours in a day.

SOLUTION

Adult elephants can eat more than 100 kgs of leaves and twigs in one day.

SOLUTION

In the herd, Nani ma is the oldest member. All the elephants follow her. She leads them to such parts of the jungles which are full of their favourite leaves and twigs.

SOLUTION

Nandu lives with its mother, nani ma, aunts and cousins.

SOLUTION

Nandu is a three month old elephant.  Nandu lives in the forest with its herd.

SOLUTION

a. First of all, butterflies lay egg.

b. Egg converts into caterpillar.

c. Then, caterpillar converts into pupa.

d. The young butterfly emerges out of pupa.

e. Gradually, it changes into an adult butterfly.

SOLUTION

Insects smell and feel through feelers on their head called Antennae and many insects have hard outer layer which is called as Chitin.

SOLUTION

Insects have six legs and their body is divided into three parts: head, thorax and abdomen. They may have 2-4 wings.

SOLUTION

a. Disagree

b. Agree

SOLUTION

SOLUTION

Young one of frog: Tadpoles

SOLUTION

Amphibians use their skin and gills to breathe in water while they use their lungs to breathe on land.

SOLUTION

b. Dinosaurs

SOLUTION

Reptiles

1)   They have scaly skins.

2)   They lay eggs on land.

SOLUTION

a. TURTLE

B. SNAKE

SOLUTION

Reptiles are cold blooded animals because they can regulate their body temperature according to the environment around them.

SOLUTION

SOLUTION

Migration

SOLUTION

Aerial animals

SOLUTION

No, all animals do not give birth to their young ones directly instead some animals lay eggs and wait till the eggs are hatched.

SOLUTION

Cows, elephants and buffaloes have hair on their skin. They have very small hair; we can only see them when we go near the animals.

SOLUTION

All animals do not have similar hair. The different patterns on animals are due to the different colour of hair on their skin.

SOLUTION

All birds have feathers, but all birds do not have similar feathers. Overall structures of the feathers are same. There are several kinds of feathers that have specialised roles and are used in many ways.

SOLUTION

Animals can be differentiated by their shape, size and the hair on the skin.

SOLUTION

These animals instead of external ears have tiny holes on both sides of their heads. These holes help them to hear. Lizards have tiny holes as ears on their heads.

SOLUTION

Deer, tiger, pig, crocodile, sparrow, duck, lizard, buffalo, giraffe, ant, snake, elephant and cat.

SOLUTION

SOLUTION

The small amount of the energy stored in food is available to the next organism in a food chain because most of the energy is used in the life processes.

SOLUTION

Saprophyte is the other name given to the decomposers as they lives on dead or decaying organic matter.

SOLUTION

Cow, Sheep, Elephant, Deer and all other herbivorous animals are the examples of the secondary level consumers.

SOLUTION

When the  snake eats the frog, it becomes the predator but after that when the eagle eats the snake, it becomes the prey.

SOLUTION

1. sparrow is at the tertiary level
2. cabbage is at the primary level
3. caterpillar is at the secondary level
4. crocodile is at the quaternary level
5. decomposer are the living things that eat quaternary level animal and ends the food chain

SOLUTION

SOLUTION

The other name given to the animals that falls in the group above secondary level consumers are predators as they feed on small carnivorous animals.

SOLUTION

When the animal at the top of the food chain dies, its body decays as it is "eaten" by bacteria. The minerals that were in the body are taken up by green plants and a new food chain begins.

SOLUTION

Plants are the base of all the food chains existing on the earth. 

SOLUTION

a.True

b.False, carnivores get their energy and nutrients from eating herbivores

c.True

d.True

e.False, omnivores are similar to both carnivores and herbivores, not decomposers

SOLUTION

Kalbelia are tribes who perform special dances with snakes.

SOLUTION

Making the wild animals accustomed to the human world.

SOLUTION

Birds have hollow bones making their skeletal system light which is an adaptation that aids in flying.

SOLUTION

Yes there is a Mammal that can fly. It is a Bat.

SOLUTION

Yes there are some birds that cannot fly. They are called Flightless birds.

Penguin and Ostrich are two flightless birds.

SOLUTION

It is a Siberian Crane.

It is a migratory bird. It leaves its home in winters and migrates to warmer places in search of food and shelter.

SOLUTION

By having light bodies, aerial animals reduce the amount of energy they need to use to be able to fly.

SOLUTION

Seals and penguins too have thick skins with a thick layer of fat deposited underneath to keep them warm.  This thick layer of deposit fat is called blubber.

SOLUTION

Most animals have four legs – two in front that are called forelimbs and two at the back that are called hind limbs. These animals have strong legs and can move fast.

SOLUTION

The animals that live in grasslands have adapted to dry, windy conditions. Most of the land animals have legs to move. These animals also have developed organ systems to adapt and adjust to their surroundings.

SOLUTION

Terrestrial animals can be broadly categorized under three parts on the basis of their habitat

1. Living on the plains and grasslands
2. Living in hotter regions
3. Living in colder region

SOLUTION

answer may vary

SOLUTION

Sunlight is the main source of all energy on the earth. Plants use the sun’s energy to make food. As animals cannot make their own food, they eat the food made by plants and hence indirectly receive the sun’s energy through plants.

SOLUTION

SOLUTION

SOLUTION

Egg is the first stage of the life cycle of a housefly. They are white in colour and about half an inch in size that more look like a grain of rice. A female housefly can lay up to 500 eggs at a time, in different batches of 75-150 eggs.

SOLUTION

In this stage, the skin of maggot becomes hard and reddish brown in colour. Pupa is inactive and does not feed.  This process takes about three to six days.  Larva develops its all the body parts and wings inside the pupal case.

SOLUTION

1. Egg: A housefly can lay up to 500 eggs at a time. Eggs are white in colour and are usually less than half an inch in size.
2. Maggot: It is the larva of the housefly which feeds vivaciously in drier places.
3. Pupa: Maggot encases itself in a capsule known as pupa.
4. Adult: After hatching out of the pupal case, an adult flies comes out of it.

SOLUTION

A tadpole feeds on small aquatic plants and animals.  It keeps on growing and develops its legs, small teeth, loses its gills and develops lungs for breathing. It becomes a late tadpole within

SOLUTION

1. The life cycle of a frog begins from the cluster of eggs called as spawn.
2. These eggs hatch and develop into a tadpole or larva.
3. With time, the tadpole grows and becomes a late tadpole.
4. Late tadpole undergoes further development into an adult frog.

SOLUTION

Animals that directly give birth to young ones are:

     1. Lion

     2. Elephant

     3. Cat

     4. Tiger

     5. Cow

SOLUTION

Fishes live in water. Their bodies are covered with scales. The scales can be of many kinds like circular or diamond shaped. They have fins on both sides to swim. They have gills which are the openings to breathe.

SOLUTION

dog

cat

horse

cow

SOLUTION

YOLK

ALBUMEN

SOLUTION

spwan, tadpoles, limbs, tails

SOLUTION

SOLUTION

1. True
2. True
3. False