Living Creatures: Exploring their Characteristics Class 6 Questions and Answers NCERT Solutions
Class 6 Science Chapter 10 Living Creatures: Exploring their Characteristics Question Answer
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Question 1.
List the similarities and differences in life cycles of plants and animals.
Answer:
| Similarities in Life Cycles of Plants and Animals | Differences in Life Cycles of Plants and Animals |
| (i) Development Stage: Both have distinct stages of development (e.g., germination, flowering in plants; egg, larva, adult in animals). | (i) Respiration: While both respire, the mechanisms differ; animals use lungs or gills, plants use stomata and lenticels. |
| (ii) Growth: Both plants and animals grow from a small initial stage (seed or embryo) into a mature form. | (ii) Growth Patterns: Plants exhibit indeterminate growth (can grow throughout their life), while animals have determinate growth (stop growing after reaching maturity). |
| (iii) Reproduction: Both undergo process to produce offspring (seeds for plants and young ones for animals). | (iii) Reproductive Structures: Animals have specialized organs for reproduction, while plants use flowers, cones, or spores. |
Question 2.
The table shows some data. Study the data and try to find out examples appropriate for the conditions given in the second and third columns. If you think that an example for any of the conditions given below is not possible, explain why.
| S.No. | Does it grow | Does it respire | Example | Remarks |
| 1 | No | No | ||
| 2 | No | Yes | ||
| 3 | Yes | No | ||
| 4 | Yes | Yes |
Answer:
| S.No. | Does it grow | Does it respire | Example | Remarks |
| 1 | No | No | Rock | Non-living does not grow and does not respire |
| 2 | No | Yes | An adult | Does not grow but respire |
| 3 | Yes | No | Clouds | Clouds grow but not respire |
| 4 | Yes | Yes | Small puppy | It grows and also respires |
Question 3.
You have learnt that different conditions are required for seed germination. How can we use this knowledge for proper storage of grains and pulses?
Answer:
To store grains and pulses properly, keep them in a cool, dry place with good ventilation to prevent moisture build up. This conditions inhibits the germination, which helps in proper storage of grains and pulses.
Question 4.
You have learnt that a tail is present in a tadpole but it disappears as it grows into a frog. What is the advantage of having a tail in the tadpole stage?
Answer:
A tadpole lives in water. Its tail helps it in movement and changing direction in water.
Question 5.
Charan says that a wooden log is non-living as it cannot move. Charu counters it by saying that it is living because it is made of wood obtained from trees. Give your arguments in favour or against the two statements given by Charan and Charu.
Answer:
- Against Charan: The wooden log was once part of a living tree, which was alive and exhibited characteristics of living beings.
- Against Charu: Once the wood is separated from the tree, it no longer exhibits growth, reproduction, or other life processes, making it non-living.
Question 6.
What are the similarities and distinguishing features in the life cycles of a mosquito and a frog?
Answer:
Similarities
- Egg Stage: Both begin life as eggs.
- Larval Stage: Both have a larval stage (tadpole in frogs, larvae in mosquitoes) that is aquatic.
Distinguishing Features
Mosquito:
Stages: Egg → Larva → Pupa → Adult
Habitat: Aquatic larvae and pupae, terrestrial adult.
Respiration: Larvae and pupae breathe through siphons.
Frog:
Stages: Egg → Tadpole → Froglet → Adult
Habitat: Aquatic tadpole, amphibious adult.
Respiration: Tadpoles have gills, adults have lungs and can respire through their skin.
Question 7.
A plant is provided with all the conditions suitable for its growth. Draw what you expect to see in the shoot and the root of the plant after one week. Write down the reasons.
Answer:
Expected observations
(i) Shoot grows upward, towards the light source.
(ii) Root grows downwards, into the soil for stability and nutrient absorption.
Reasons
(i) Shoots grow towards light.
(ii) Roots grow downwards for anchorage and nutrient absorption.
Question 8.
Tara and Vijay set up the experiment shown in the picture. What do you think they want to find out? How will they know if they are correct?
Answer:
Tara and Vijay wants to find out that the direction of growth of root and shoot does not get affected by the orientation of seed placed in the soil.
They will know if they are correct if the shoot always grows upwards (towards the light) and the root always grows downwards (into the soil), regardless of how the seed is placed.