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Olympiad Test Level 1: Plants and Animals - Class 3 MCQ


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20 Questions MCQ Test Science Olympiad for Class 3 - Olympiad Test Level 1: Plants and Animals

Olympiad Test Level 1: Plants and Animals for Class 3 2024 is part of Science Olympiad for Class 3 preparation. The Olympiad Test Level 1: Plants and Animals questions and answers have been prepared according to the Class 3 exam syllabus.The Olympiad Test Level 1: Plants and Animals MCQs are made for Class 3 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test Level 1: Plants and Animals below.
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Olympiad Test Level 1: Plants and Animals - Question 1

Which of the following plants will not be able to survive?

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 1

Plants require stem, leaves, roots for its survival. In this, plant (a) does not have roots in it. Plant (b) does not have leaves and plant (c) does not have stem. So only plant (d) can survive because it has all the parts(roots, stem and leaves) in it.

Olympiad Test Level 1: Plants and Animals - Question 2

The part of the plant which grows above the ground.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 2

Shoot is the part of the plant which grows above the ground and root is the part of the plant which grows below the ground.

Olympiad Test Level 1: Plants and Animals - Question 3

To which category does this animal in the figure belong?

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 3

Horse is a plant eater animal so, it is a herbivore.

Olympiad Test Level 1: Plants and Animals - Question 4

 Animals that eat both plants and flesh of other animals.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 4

Animals which eat only plants are called Herbivores. Animals which only eat flesh are called Carnivores. Animals which eat both plants and flesh are called Omnivores.

Olympiad Test Level 1: Plants and Animals - Question 5

Select the animal which gives birth to a young one.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 5

Whales are marine mammals which give birth to young ones.

Olympiad Test Level 1: Plants and Animals - Question 6

Among the following, who is known as a producer?

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 6

Plants are autotrophs or producers which make or manufacture their food by their own.

Olympiad Test Level 1: Plants and Animals - Question 7

The function of Long and thick Trunk of Elephant is-

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 7

 Elephants trunk break branches and leaves, it also sucks water and blows into the mouth.

Olympiad Test Level 1: Plants and Animals - Question 8

The animal lives on trees-

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 8

Monkey is an arboreal animal which has a habitat on trees.

Olympiad Test Level 1: Plants and Animals - Question 9

In desert plants, leaves are modified into thorns. How do thorns help a plant?

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 9

Thorns in Desert Plants: Their Function and Importance

Thorns are modified structures found in some desert plants that serve various purposes. In the context of desert environments, where resources like water and nutrients are scarce, thorns play a crucial role in the survival and protection of these plants.

1. Protection against Herbivores:
One of the primary functions of thorns is to protect desert plants from being consumed by herbivorous animals. The sharp, pointed nature of thorns acts as a deterrent, preventing animals from approaching or feeding on the plant. By acting as a physical barrier, thorns help in reducing the risk of damage caused by grazing or browsing animals.

2. Defense against Predators:
In addition to deterring herbivores, thorns also serve as a defense mechanism against predators. Many desert plants with thorns are often avoided by animals due to the potential harm caused by the sharp structures. This helps in safeguarding the plant from being uprooted or damaged by larger animals seeking shelter or food.

3. Reducing Water Loss:
Desert plants face the challenge of water scarcity, and thorns can assist in reducing water loss. By modifying leaves into thorns, the plant decreases its overall surface area exposed to the dry desert air. This adaptation helps to minimize water loss through evaporation, as the reduced surface area reduces the chances of transpiration occurring.

4. Regulating Temperature:
Thorns can also play a role in regulating the temperature of desert plants. In hot desert environments, thorns provide shade to the plant's surface, preventing direct exposure to sunlight. This shade helps in reducing the plant's temperature, minimizing the risk of overheating and excessive water loss through transpiration.

In conclusion, thorns in desert plants have evolved to serve multiple functions, primarily protecting the plant from being eaten by herbivores and defending against predators. Additionally, thorns aid in reducing water loss and regulating temperature, which are vital adaptations for survival in arid desert conditions.

Olympiad Test Level 1: Plants and Animals - Question 10

Which of the following animals can change body colouring to protect themselves from their enemies?

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 10

Chameleon is an animal which changes the colour of the body according to its habitat to protect from predators.

Olympiad Test Level 1: Plants and Animals - Question 11

Look the sentence below:
“ LOST ANIMAL: The animal we seek is an amphibian it feeds on insects only. You will be amazed by the number of eggs that it can lay ”
Based on given information, which of the following statements is true about the lost animal?

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 11

Amphibians are carnivores which live both on land and water. These animals lay eggs. Eg. Frog.

Olympiad Test Level 1: Plants and Animals - Question 12

Small openings present on leaves that help in the exchange for gases.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 12

Stomata are small openings present on the lower surface of leaves which help in exchange of gases.

Olympiad Test Level 1: Plants and Animals - Question 13

Select the odd one out on the basis of feedings on flesh of dead animals.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 13

Lion is a carnivore while Vulture, Eagle and Hyena are Scavengers.

Olympiad Test Level 1: Plants and Animals - Question 14

Fibrous root is present in-

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 14

Banana has parallel venation in its leaves as it has a fibrous root system.

Olympiad Test Level 1: Plants and Animals - Question 15

Select the modified stem from the following.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 15

Potato is a modified stem and carrot, Radish are roots.

Olympiad Test Level 1: Plants and Animals - Question 16

Study the following chart:

Grass → x → Y → Snake

Identify x and y from the following

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 16

Grass is eaten by Grasshoppers and Frog eats grasshoppers. It is a Food Chain.

Olympiad Test Level 1: Plants and Animals - Question 17

Match the Column:

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 17

Margin is the out of leaf whereas Laminais the broad thin flat structure of leaf which possesses a network of Veins. Lamina is also known as leaf blade.Stomata helps in exchange of gases and Midline of leaf is called vein.

Olympiad Test Level 1: Plants and Animals - Question 18

Fruits provide protection to the __________.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 18

Seeds are protected by the fruits.

Olympiad Test Level 1: Plants and Animals - Question 19

Choose the correct option
(i) Fruit is a fleshy part of a tree
(ii) Shoot grows below the ground
(iii) Flower is the reproductive part of a plant
(iv) Roots absorb food from soil and transport it to the leaves only.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 19

Shoot is the part of the plant which grows above the ground. Roots absorb water and dissolved nutrients from the soil and transport it to the different parts of the plants.

Olympiad Test Level 1: Plants and Animals - Question 20

Trunk  is the main stem of the tree. It divides into many branches higher up in the tree. The _____ of the tree protects the trunk.

Detailed Solution for Olympiad Test Level 1: Plants and Animals - Question 20

The bark is an outer covering of dead tissue, which protects the trunk of the tree from weather, insects and mechanical injury.

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