Animals can be grouped based on features such as:
  • Habitat, food habits, body structure, and mode of reproduction
  • Color, size, and speed only
  • Number of legs and tail length only
  • Favorite food and playfulness
Which body parts are used by the animals in the poster you created and those in Fig. 2.7 for movement?
  • Legs, wings, fins, and tentacles
  • Eyes, ears, nose, and mouth
  • Teeth, claws, fur, and skin
  • Heart, liver, stomach, and lungs
List these animals in Table 2.5.
  • Bird, cow, snail, fish, frog, octopus, lizard, duck, tortoise
  • Dog, cat, rabbit, horse, sheep, goat, pig, chicken, duck
  • Lion, tiger, bear, wolf, fox, deer, monkey, elephant, giraffe
  • Ant, bee, butterfly, spider, worm, mosquito, fly, beetle, cricket
Note the ways in which these animals move and name the body parts used for movement. Some examples are given in Table 2.5. (Refer to Fig. 2.7: Diversity in animals)
  • Bird: fly (wings), Cow: walk (legs), Snail: crawl (muscular foot), Fish: swim (fins), Frog: swim/jump (legs), Octopus: swim (tentacles), Lizard: crawl (legs), Duck: swim/walk (legs, webbed feet), Tortoise: crawl (legs)
  • Bird: swim (fins), Cow: fly (wings), Snail: jump (legs), Fish: crawl (tentacles), Frog: walk (webbed feet), Octopus: walk (legs), Lizard: swim (fins), Duck: crawl (muscular foot), Tortoise: fly (wings)
  • Bird: crawl (legs), Cow: swim (fins), Snail: fly (wings), Fish: jump (legs), Frog: crawl (tentacles), Octopus: walk (webbed feet), Lizard: fly (wings), Duck: jump (legs), Tortoise: swim (fins)
  • Bird: jump (legs), Cow: crawl (tentacles), Snail: swim (fins), Fish: fly (wings), Frog: fly (wings), Octopus: crawl (muscular foot), Lizard: walk (webbed feet), Duck: fly (wings), Tortoise: jump (legs)
According to Table 2.5, what type of movement does an ant use and which body part is involved?
  • Walk; Legs
  • Jump; Wings
  • Swim; Antennae
  • Fly; Tail
According to Table 2.5, what type of movement does a goat use and which body part is involved?
  • Walks and jumps; Legs
  • Flies; Wings
  • Swims; Fins
  • Crawls; Belly
According to Table 2.5, what type of movement does a pigeon use and which body parts are involved?
  • Walks and flies; Legs and wings
  • Swims; Fins and tail
  • Crawls; Belly and legs
  • Hops; Feet and beak
According to Table 2.5, what type of movement does a housefly use and which body parts are involved?
  • Walks and flies; Legs and wings
  • Swims; Fins and tail
  • Crawls; Antennae and mouthparts
  • Jumps; Legs and tail
According to Table 2.5, what type of movement does a fish use and which body part is involved?
  • Swim; Fins
  • Hop; Legs
  • Fly; Wings
  • Crawl; Tail
According to Table 2.5, what type of movement does a snake use and which body part is involved?
  • Crawling; Whole body
  • Jumping; Legs
  • Flying; Wings
  • Swimming; Fins
According to Table 2.5, what type of movement does a cow use and which body part is involved?
  • Walk; Legs
  • Fly; Wings
  • Swim; Fins
  • Hop; Feet
According to Table 2.5, what type of movement does a butterfly use and which body parts are involved?
  • Fly; Wings
  • Swim; Legs
  • Crawl; Antennae
  • Jump; Abdomen
Explain the term biodiversity.
  • Biodiversity refers to the total number of organisms in a single habitat.
  • Biodiversity is the study of animal behavior in urban areas.
  • Biodiversity means the distribution of resources in a specific ecosystem.
  • Biodiversity is the variety of life on Earth, including species diversity, genetic diversity, and ecosystem diversity.
According to Table 2.5, what type of movement does a rabbit use and which body part is involved?
  • Jumps; Legs
  • Swims; Fins
  • Flies; Wings
  • Crawls; Belly
What conclusions can you draw from the data given in Table 2.5?
  • Different animals use different types of movement and body parts for movement.
  • All animals move in the same way using the same body parts.
  • Only birds can fly, and all other animals can only walk.
  • Animals do not use their body parts for movement.
Animals can be grouped based on their movements by considering:
  • the types of movement they use and the body parts involved, such as wings, legs, fins, or whole body.
  • the color of their fur or skin.
  • the sounds they make.
  • the places where they sleep.
Janaki Ammal was an Indian botanist dedicated to environmental work and plant biodiversity. What was her contribution to science?
  • She played a key role in the 'Save Silent Valley' movement and initiated programmes to document India's plant diversity.
  • She discovered a new species of butterfly in India.
  • She was the first Indian woman to win a Nobel Prize in Physics.
  • She invented a new method for water purification.
What is the main purpose of the Silent Valley Movement described in the passage?
  • To build a hydroelectric dam
  • To preserve the untouched beauty and biodiversity of a moist evergreen forest
  • To promote tourism in Kerala
  • To cut down trees for timber
Fill in the blank: The Silent Valley is located in the ______ district of Kerala.
  • Palakkad
  • Ernakulam
  • Kollam
  • Kozhikode
The movement to save Silent Valley was led only by people living in the vicinity of the forest.
  • True
  • False
Which body part do fishes use for movement in water?
  • Legs
  • Fins
  • Wings
  • Tails
Which body part do goats use for movement on the ground?
  • Fins
  • Legs
  • Wings
  • Flippers
Fill in the blank: Fishes have ______ bodies and fins for movement in water.
  • streamlined
  • rough
  • flat
  • bulky
Plants and animals found in one kind of region are different from those found in another kind of region.
  • Plants and animals found in all regions are the same.
  • Plants and animals found in one kind of region are different from those found in another kind of region.
  • Only plants are different in various regions, animals are the same everywhere.
  • Animals are different in various regions, but plants are the same everywhere.
Plants and animals differ between the desert and the mountains in the following way:
  • Desert plants like cactus have thick stems, and animals like camels live there; mountain plants like deodar are conical, and animals like yaks live there.
  • Desert plants are conical and animals like yaks live there; mountain plants have thick stems and animals like camels live there.
  • Both desert and mountain plants have fleshy stems, and animals like camels live in both places.
  • Mountain plants like cactus have thick stems, and animals like camels live there; desert plants like deodar are conical, and animals like yaks live there.
Fill in the blank: The plant observed in the desert is _______.
  • cactus
  • rose
  • lotus
  • pine
Fill in the blank: The plant observed in the mountains is _______.
  • deodar tree
  • cactus
  • mango tree
  • bamboo
Fill in the blank: The animal observed in the desert is _______.
  • camel
  • penguin
  • polar bear
  • dolphin
Fill in the blank: The animal observed in the mountains is _______.
  • yak
  • lion
  • elephant
  • kangaroo
Fill in the blank: The animal observed in the ocean is _______.
  • fish
  • cat
  • dog
  • elephant
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