Grade 6 : Science (Curiosity) - 2. Diversity in the Living World (Set 1) | Concept of Maths

Question 1

1. The specific features or certain habits that allow an organism to live naturally in a particular environment are called:

A) Adaptations

B) Habitats

C) Evolution

D) Acclimatization

Answer

Correct Answer: A

Adaptation refers to the presence of specific features or habits which enable a plant or an animal to live in its surroundings. For example, the thick fur of a yak is an adaptation to cold climates.

Question 2

2. In a desert habitat, how do camels manage to conserve water effectively?

A) They sweat profusely to cool down

B) They excrete very small amounts of urine

C) They breathe out large amounts of moisture

D) Their dung is very wet

Answer

Correct Answer: B

Camels have several adaptations for the desert: 1. They excrete small amounts of urine. 2. Their dung is dry. 3. They do not sweat. These features help them conserve $H_{2}O$.

Question 3

3. Fish possess specific structures that help them use oxygen dissolved in water. These structures are known as:

A) Lungs

B) Blowholes

C) Gills

D) Stomata

Answer

Correct Answer: C

Gills are the respiratory organs in fish that absorb $O_{2}$ dissolved in water and release $CO_{2}$ from the blood.

Question 4

4. Trees found in mountain regions are often cone-shaped and have sloping branches. What is the primary reason for this shape?

Question 5

5. Which of the following is an example of a 'Biotic' component of a habitat?

A) Rocks and Soil

B) Microorganisms

C) Sunlight

D) Air

Answer

Correct Answer: B

Biotic components are the living things in a habitat, such as plants, animals, and microorganisms. Abiotic components are non-living things like rocks, soil, air, and water.

Question 6

6. The process of producing energy from food by using oxygen and releasing carbon dioxide is called:

A) Photosynthesis

B) Digestion

C) Circulation

D) Respiration

Answer

Correct Answer: D

Respiration is a chemical process where cells use $O_{2}$ to break down food and release energy, with $CO_{2}$ as a byproduct. $$ \text{Food} + O_{2} \rightarrow \text{Energy} + CO_{2} + H_{2}O $$

Question 7

7. When we touch the leaves of a Mimosa pudica (touch-me-not) plant, they fold up. This is an example of:

A) Excretion

B) Reproduction

C) Response to stimuli

D) Growth

Answer

Correct Answer: C

Changes in our surroundings that make us respond to them are called stimuli. The folding of leaves in response to touch is a classic example of a plant responding to a stimulus.

Question 8

8. In many desert plants, like the Cactus, photosynthesis is primarily carried out by the:

A) Spines

B) Stem

C) Roots

D) Flowers

Answer

Correct Answer: B

In cacti, leaves are reduced to spines to reduce water loss. Therefore, the green, fleshy stem takes over the function of photosynthesis.

Question 9

9. The process by which living organisms get rid of waste products produced inside their bodies is:

A) Excretion

B) Secretion

C) Absorption

D) Respiration

Answer

Correct Answer: A

Excretion is the biological process by which organisms remove metabolic waste products from their bodies.

Question 10

10. Marine habitats are characterized by:

A) Fresh water

B) Frozen water

C) Saline (Salty) water

D) Stagnant water

Answer

Correct Answer: C

Marine habitats include oceans and seas which contain saline water (water with high salt concentration).

Accepted Answer

Correct Answer: A

The conical shape and sloping branches of mountain trees are adaptations that allow rainwater and snow to slide off quickly, preventing damage to the branches.

Grade 6 : Science (Curiosity) - 2. Diversity in the Living World (Set 1) | Concept of Maths