Advertisements
Advertisements
प्रश्न
Give scientific reason.
Earthworm is said to be a farmer’s friend.
Advertisements
उत्तर
- Earthworms loosen the soil by burrowing deep into it, thus they help to aerate the soil.
- This continuous digging of soil also helps the water to reach the roots quickly.
- Earthworms can decompose the organic matter from the soil and convert it into rich manure.
- This helps in increasing the fertility of the soil, which ultimately increases crop production.
Thus, earthworm is said to be farmer’s friend.
APPEARS IN
संबंधित प्रश्न
Answer the question by choosing correct option.
Which of the following animal's body shows bilateral symmetry?
Label the following.
___________ animal is called a friend of farmers.
Find an odd one out.
In which phylum, the animals have setae or parapodia for locomotion?
State whether true or false. If false, correct the statement.
Trachea are the respiratory organ of Annelida.
Give an account on phylum Annelida.
One of the following is not an Annelid
Name the following:
A phylum that has hermaphrodite animals.
Metamerism is the characteristic of
Match List - I with List - II.
| List I | List II | ||
| (a) | Metamerism | (i) | Coelenterata |
| (b) | Canal system | (ii) | Ctenophora |
| (c) | Comb plates | (iii) | Annelida |
| (d) | Cnidoblasts | (iv) | Porifera |
Choose the correct answer from the options given below.
Provide appropriate technical term in the space provided.
Lateral appendages in aquatic annelids ______.
Give a scientific reason.
Why is earthworm called farmer's friend?
