Class 5th General Science Chapter #1: Classification of living things Complete chapter questions and answers.Full exercise solved
Q.i : What colors are found in algae?
Ans: Green, Red and Brown colors are found in algae.
Q.ii: Write two characteristics of animals.
Ans: Animals cannot prepare their own food. They can move from place to place.
Q.iii: Write the characteristics of amphibians.
Ans: (1) Amphibians can live on land and in water.
(2) They lay eggs in water.
(3) They have wet and smooth skin.
(4) They have a bony skeleton.
Q.iv: Mention two characteristics of flowering plant.
Ans: (1) Flowering plants produce flowers.
(2) They produce seeds for their reproduction.
Q.V: What are the characteristics of insects?
Ans: (1) All insects have three main body parts. i. e Head, Thorax and abdomen.
(2) They have six legs.
(3) They do not have a bony skeleton.
Q.vi: What are the main difference between plants and animals?
Ans: Plants: Plants can prepare their own food. They cannot move from place to place.
Animals: Animals cannot prepare their own food. They can move from place to place.
Q.I: Define Classification. How the organisms are classified?
Ans: Classification: The process though which organisms are placing into groups and subgroups
On the basis of similarities is called classification. The organisms are classified by similar physical structure, Shape, Size, color etc.
Q.II: Briefly describe major groups of living organisms.
Ans: Living organisms are classified into the following five major groups.
- Bacteria: Bacteria are very small organisms, which we cannot see with our naked eyes. They are of different shapes and sizes. Many of them are harmful but some of them are beneficial.
- Algae: Algae are generally green in color and present in water. They do not have roots, stem, or leaf. They also found in Red and brown colors.
- Fungi: Fungi are a diverse group of organisms. Mould, Mushroom and yeast are fungi. They grow on heaps of garbage, dung and tree logs. They cannot prepare their own food. They take their food from dead plants and animals.
- Plants: Plants can prepare their own food. They cannot move from place to place. They are generally green in color.
- Animals: Animals cannot prepare their own food. They can move from place to place.
Q.III: Classify vertebrates into their subgroups?
Ans: Vertebrates have the following five subgroups.
- Fishes: Fishes live in water and respire by gills. They lay eggs for their reproduction.
- Amphibians: Amphibians can live both in water and on land. They have wet and smooth skin. They lay eggs in water.
- Reptiles: Reptiles have dry scaly skin. They lay eggs on land. They have four limbs.
- Birds: The body of all birds is covered with feathers. They have beaks and claws. They have wings to fly. They lay eggs.
- Mammals: All mammals have hair on their bodies. They give birth to their babies. The female mammal feed the babies with her milk.
Q: IV: How can we differentiate a monocot plant from a dicot plant?
Ans: Monocot Plant: They have one cotyledon in their seed. They have narrow and pointed
Leaves. They have fibrous root.
Dicot Plants: They have two cotyledons in their seeds. They have broad and wide leaves.
They have tap roots.
Q.V: Describe different types of invertebrates.
Ans: Invertebrates have two types.
- Insects: Insects have three main body parts. i. e Head, thorax and abdomen. They have six legs. They have two antennae.
- Worms: Worms have soft and segmented bodies. Some worms live in damp soil. They also live inside the bodies of different animals and plants.