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☆•..¤( Prateek )¤..•☆ 5 years, 3 months ago
Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
- Phylum Mollusca is the second largest animal phylum.
- They are bilaterally symmetrical, triploblastic and coelomate animal.
- Body is covered by a calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump.
- A soft and spongy layer of skin forms a mantle over the visceral hump, the space between the hump and the mantle is called the mantle cavity in which feather like gills are present.
- The anterior head region has sensory tentacles and the mouth contains a file-like rasping organ for feeding, called
- They are usually dioecious and oviparous with indirect development.
Examples- Pila (Apple snail), Pinctada (Pearl oyster).
Posted by Shivaji Gaykwad 5 years, 3 months ago
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Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
NON-CHORDATES
(i)Notochord is absent
(ii)Gill slits are absent
(iii)Exo skelton are present
(iv)Haemoglobin when present is in the blood plasma
(v)Example- Platyhelminthes, Nematodes, Molluscs
Posted by Shivaji Gaykwad 5 years, 3 months ago
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Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
Class amphibia includes amphibious animals which can live on both the places at ease i.e. under water and on the land. No marine.
Example: frog, toad, Ichthyophis.Salamanders.
Posted by Sayantini Banerjee 5 years, 3 months ago
- 2 answers
Priyanshu ?✌??? 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
|
Binary fission |
Multiple fission |
|
1. Forms two daughter individuals |
1. Forms many daughter individuals |
|
2. Divides only once |
2. Divides repeatedly |
|
3. No residue is left |
3. Residue is left |
|
4. Takes place in favourable conditions |
4. Takes place in favourable as well as unfavourable conditions |
|
5. Immortality is present |
5. Immortality is absent |
|
Example: Amoeba reproduces by binary fission |
Example: Plasmodium reproduces through multiple fission |
Posted by Laksha Sachdeva 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
Mahatma Gandhi believed in the ideology of Swedeshi ie, to use everything that is made in India. During the colonial period, the British had discouraged the Indian textile industries and promoted the British made goods especially the textiles. This lead to the closure of several Indian hand loom industries and many weavers were hit hard. Gandhi and other leaders in order to promote swedeshi goods encouraged the people to spin yarn and weave Khadi. This hit the British textile industries hard and provided work to many Indian artisans and weavers.
Posted by Dharani Vinayak 5 years, 3 months ago
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........ ...... 5 years, 3 months ago
Posted by Satyam Kumar 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
D-105
Lajput Nagar
New Delhi
7th feb,2019
The Director
German Embassy
Chanakya Puri,New Delhi
Sir
Sub:Inquiring about German Language courses
This is with reference to your advertisement in THE TRIBUNE newspaper.I want to say that i am very much interested in German language courses.Kindly furnish the following details:
(1)Eligibility
(2)Duration of course
(3)About teachers
(4)Transportation facilities
(5)Hostel facilities
Kindly send me the brochure(admission form)so that I could register myself as soon as possible.
Thanking you
Yours truly
Ramesh/Rama
Posted by Akhya Sahay 5 years, 3 months ago
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Utsav Kumar 5 years, 3 months ago
Harshali Vilhekar 5 years, 3 months ago
Posted by Akhya Sahay 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Dynamo is an electric generator. It produces direct current by converting mechanical energy into electricl energy . It consists of a strong electromagnet between the poles of which is rotated an armature , consisting of a number of coils suitably wound. It is based on the principle of electromagnetic induction.
Vishal Upadhyay 5 years, 3 months ago
Posted by Shivam Verma 5 years, 3 months ago
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Posted by Dinakaran N 5 years, 3 months ago
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Gaurav Seth 5 years ago
Research Questions
- What is sustainable development?
- Is sustainable development just about saving the environment, or other are there other factors involved such as human welfare, construction, politics or economics?
- What are different types of activities or projects that fall under sustainable development?
- What are some national sustainable development projects?
- Are there any local sustainable development projects?
- What are some international sustainable development projects?
- What are the benefits of sustainable development?
- What are problems and challenges associated with sustainable development?
- What are some organizations that are involved in sustainable development?
Click on the link for project:
<a href="https://www.education.com/science-fair/article/what-is-sustainable-development/" ping="/url?sa=t&source=web&rct=j&url=https://www.education.com/science-fair/article/what-is-sustainable-development/&ved=2ahUKEwiH0_7EybHtAhWUxzgGHaRtAjAQFjAKegQIAhAC" rel="noopener" target="_blank">What is Sustainable Development? | Science project ...</a>
Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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☆•..¤( Prateek )¤..•☆ 5 years, 3 months ago
Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
........ ...... 5 years, 3 months ago
Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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Anand Sagar Mathematician 5 years, 3 months ago
Priyanshu ?✌??? 5 years, 3 months ago
Posted by Sarika Agarwal 5 years, 3 months ago
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Surya Pratap 5 years, 3 months ago
Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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Posted by Sarika Agarwal 5 years, 3 months ago
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Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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☆•..¤( Prateek )¤..•☆ 5 years, 3 months ago
Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Posted by Sarika Agarwal 5 years, 3 months ago
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Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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Priyanshu ?✌??? 5 years, 3 months ago
Posted by ☆•..¤( Prateek )¤..•☆ 5 years, 3 months ago
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Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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☆•..¤( Prateek )¤..•☆ 5 years, 3 months ago
Posted by Ayush Kumar 5 years, 3 months ago
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Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Posted by Shardul Rai 5 years, 3 months ago
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Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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☆•..¤( Prateek )¤..•☆ 5 years, 3 months ago
Sania Maria Biju 5 years, 3 months ago
Posted by Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
- 2 answers
Yogita Ingle 5 years, 3 months ago
Following are the various advantages of tissue culture technique:
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The plantlets are obtained in a very short time with a small amount of plant tissue.
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The new plants produced are disease-free.
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The plants can be grown throughout the year, irrespective of the season.
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A large space is not required to grow plants by tissue culture technique.
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The production of new varieties in the market place speeds up.
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This technique is being used for the production of ornamental plants such as dahlia, chrysanthemum, orchids, etc.
Posted by Priyanshu ?✌??? 5 years, 3 months ago
- 3 answers
Yogita Ingle 5 years, 3 months ago
Variation is the change in characters or traits of an individual which has not existed in their parents.
Variations can be of many types. If mutation occurs, there is a sudden change in the number or structure of genes or chromosomes. This change lasts generation after generation. For example, in the atomic bombing of Hiroshima and Nagasaki in 1945, the structure of genes of people changed. This is lasting till now. Moreover in disasters like Radioactive leakage, mutations can occur.
Variations lead to Evolution. This fact has lead to development of humans from ape.
Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Posted by Khushi Anurag 5 years, 3 months ago
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Vaibhav Singhal 5 years, 3 months ago
Posted by Priyanshu ?✌??? 5 years, 3 months ago
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Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
Posted by Khushi Anurag 5 years, 3 months ago
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Priya ✧*。٩(๑˙╰╯˙๑)و✧*。 5 years, 3 months ago
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