Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Piyush Bharti 5 years, 1 month ago
- 5 answers
Varun Soni 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
The full form of BCG is Bacillus Calmette Guerin. BCG is a weakened form of a bacteria called Mycobacterium bovis which is closely linked to Mycobacterium tuberculosis, the tuberculosis agent.
Posted by Datta More 5 years, 1 month ago
- 1 answers
Yogita Ingle 5 years, 1 month ago
I=100 ma = 100 x 10 -3 A
t= 120s
q=i/t
q= 100/ 1000x 120
q= 0.00083 C
Posted by Piyush Bharti 5 years, 1 month ago
- 1 answers
Posted by Veerayya Nidamanuri 5 years, 1 month ago
- 1 answers
Vartika Singh 5 years, 1 month ago
Posted by Aasheesh Yadav 5 years, 1 month ago
- 3 answers
Esha Kendhe 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
Carbon has four electrons in it's valence, and possess the property of catenation. It forms covalent bonds, and hence, leads to the formation of different elements.
It cannot lose or gain electrons, due to it's tetravalency
Arnav Raj 5 years, 1 month ago
Posted by Sneha Singh 5 years, 1 month ago
- 2 answers
Esha Kendhe 5 years, 1 month ago
Posted by Prince Yadav 5 years, 1 month ago
- 4 answers
Yogita Ingle 5 years, 1 month ago
The Dental Formula is expressed as:
(The number of each type of teeth in the upper jaw) / (The number of teeth on one side of the lower jaw)
| Dental Formula = (2 incisors 1 canine 2 premolar 3 molar) / (2 incisors 1 canine 2 premolar 3 molar) |
Humans have two dental formulae:
The primary dentition (20 teeth):
I2/2 C1/1 M2/2 = 10
The permanent dentition (32 teeth):
I2/2C1/1 P2/2 M 3/3 = 16.
Where: I – Incisors, C-Canine and M-Molar
Among all other mammals, both humans and apes have similar sets of teeth and dental formulae.
Singh Yadav 5 years, 1 month ago
Posted by Easy Techz 4 years, 8 months ago
- 1 answers
Sia ? 4 years, 8 months ago
Sexual intercourse is sexual activity typically involving the insertion and thrusting of the ***** into the ****** for sexual pleasure, reproduction, or both. This is also known as vaginal intercourse or vaginal ***.
Posted by Vivek Rajput 5 years, 1 month ago
- 0 answers
Posted by Sania Chauhan 5 years, 1 month ago
- 1 answers
Meghna Thapar 5 years, 1 month ago
The chemical properties of an element are due to the distribution of electrons around the atom's nucleus, particularly the outer, or valence, electrons; it is these electrons that are involved in chemical reactions. By convention, elements are organized in the periodic table, a structure that captures important patterns in their behavior. ... These properties determine an element's physical state at room temperature—gas, solid, or liquid—as well as its chemical reactivity, the ability to form chemical bonds with other atoms.
Posted by Sameer Sharma 5 years, 1 month ago
- 4 answers
Shubhi Agarwal 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
In plants cuticle is the layer of wax and cutin that covers the outermost surfaces of a plant. The cuticle is secreted by the epidermis and helps prevent water loss and infection by parasites.
In animals, cuticle is the noncellular, hardened or membranous protective covering of many invertebrates ( the transparent membrane that covers annelids). It is also the outer layer of the skin covering the exterior body surface of vertebrates.
Nisha???????? Bharti 5 years, 1 month ago
Posted by Varun Sahu 5 years, 1 month ago
- 2 answers
Yogita Ingle 5 years, 1 month ago
When 1 Joule of work is done to move a charge of amount 1 Coulomb from one place to another, then it is said that the potential difference between the two points is 1 Volt (V).
Posted by Confusion ??? Master ??? 5 years, 1 month ago
- 5 answers
Posted by Confusion ??? Master ??? 5 years, 1 month ago
- 5 answers
Posted by Khushi Mittal 5 years, 1 month ago
- 3 answers
Tanishq Sharma 5 years, 1 month ago
?Mansi ? 5 years, 1 month ago
Posted by Nidhi Kumari 5 years, 1 month ago
- 3 answers
?Mansi ? 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
The Circulatory System is the system of organs in the human beings and other animals which is responsible for transport of materials inside the body. It consists of heart, arteries, veins, capillaries and blood. The heart acts as a pump to push out blood.
Varun Sahu 5 years, 1 month ago
Posted by Ashutosh Kumar 5 years, 1 month ago
- 3 answers
Sushil Kumar 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
Reproduction is the process by which new individuals are produced by the parents. The process of reproduction ensures that a plant or animal species does not disappear from Earth. This process is very important in maintaining stability in the ecosystem and for the continuation of life on earth. Had there been no reproduction, all the species would have become extinct.
Importance of Reproduction
- Reproduction maintains a balance between the birth rate and death rate.
- The new individuals replace the old and the dying population.
- It also helps in increasing the number of species in the ecosystem.
- The genes are transmitted from the parents to the offspring.
- This leads to the evolution of species.
- Variations in species and their ability to survive in different environments is the result of reproduction.
Rahul Kumar 5 years, 1 month ago
Posted by Srinjay Sarkar 5 years, 1 month ago
- 2 answers
Posted by Bobby Dubey 5 years, 1 month ago
- 2 answers
Posted by Bobby Dubey 5 years, 1 month ago
- 1 answers
Venkat Murali 5 years, 1 month ago
Posted by Vaishnavi Tiwari 5 years, 2 months ago
- 2 answers
Tannu Yadav 5 years, 1 month ago
Vijender Choudhary 5 years, 2 months ago
Posted by Anagha Siju 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Destarching occurs in a plant when a part of a plant is "deprived of starch, as by translocation". It is also the process of eliminating starch reserves in a plant for experiments concerning photosynthesis.
To prove the necessity of sunlight in photosynthesis following steps need to do
- Take a plant with destarched leaf.
- Leaf is partially covered with black paper on which a design is cut.
- Expose this plant to sunlight for few hours and perform a starch test with iodine solution.
Observation-
- Covered leaf part shows brown colouration.
- Exposed leaf shows blue-black colour.
Result- Starch is present in the exposed leaf.
Conclusion- Leaf exposed to sunlight give iodine test, proving that sunlight is necessary for photosynthesis.
Posted by Neha Great 5 years, 2 months ago
- 3 answers
Ak Kumari 5 years, 1 month ago
Bhaduram Hembra 5 years, 2 months ago
Meghna Thapar 5 years, 2 months ago
A food chain is a series of organisms where all the organismsare dependent on next organism as a source of food. The series of organism take part at various biotic levels to form a food chain. Each step of the food chain forms a tropic level. ... Tertiary consumers (larger carnivores) form the fourth tropic level. A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain.
Posted by Aayush Jha 5 years, 2 months ago
- 2 answers
Anushka Kumari 5 years, 2 months ago
Posted by Anagha Siju 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
DNA copying is otherwise known as DNA replication which is the process of producing 2 identical copies of DNA from one original DNA molecule during cell division. DNA copying is important because it generates variation during sexual reproduction which leads to evolution. Also, DNA copying helps in transfer of information or characters from the parents to the offsprings.
Posted by Atharva Ghawate 5 years, 2 months ago
- 1 answers
Bobby Dubey 5 years, 1 month ago
Posted by Atharva Ghawate 5 years, 2 months ago
- 1 answers
Bobby Dubey 5 years, 1 month ago
Posted by Atharva Ghawate 5 years, 2 months ago
- 1 answers
Meghna Thapar 5 years, 1 month ago
Homologous series is a series of compounds with similar chemical properties and some functional group differing from the successive member by CH2. Carbon chains of varying length have been observed in organic compounds having the same general formula. Such organic compounds that vary from one another by a repeating unit and have the same general formula form a series of compounds. Alkanes with general formula CnH2n+2, alkenes with general formula CnH2n and alkynes with general formula CnH2n-2 form the most basic homologous series in organic chemistry. The successive members vary from each other by a CH2 unit. For example in CH4 and C2H6, the difference is -CH2 unit and the difference between C2H6 and C3H8 is also -CH2 unit. So CH4, C2H6, and C3H8 are homologs. The same thing can be observed in case of alkenes in which the first member is ethene and the successive members are C3H6, C4H8, and C5H10. They differ from each other by a –CH2 unit. Alkene formula is written as CnH2n.
Posted by Bhavana R K 5 years, 2 months ago
- 2 answers
King Adithya H M... 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
(a) Fragmentation is defined as the process of breaking up of body on maturation into two or more smaller pieces. Each piece of the body results in development of new individuals. The multicellular organism which reproduces by fragmentation is spirogyra.
(b) Regeneration is defined as the process of growing a full organism from its body part. The examples of regeneration are: Hydra and Planaria. When the body of Planaria is cut into number of pieces, the each and every body piece can regenerate and results in formation of a complete Planaria. The regeneration of an organism occurs by the process of growth and development The cells of body part which has been cut down gets divides and makes a ball of cells. These multiple cells result in formation of tissues and forms organs again and results in regeneration of another Planaria. It can be explained with the help of the following diagram:
Posted by Sheetal Barik 5 years, 2 months ago
- 3 answers
King Adithya H M... 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
The copying of DNA during reproduction is important because:
- The replication of DNA ensures that each daughter cell formed at the end of cell division, receives equal amount of DNA.
- If DNA won't be copied then the daughter cells won't receive all necessary genes.
- There may be absence of important proteins which are encoded by DNA, if DNA won't be replicated.
- Copying of DNA may result in recombination which will lead to evolution.
- Transfer of genetic material from one generation to other makes the organisms to have similar functions.
- Stability of population is maintained.
A S 5 years, 2 months ago
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Tulsi Yadav 5 years, 1 month ago
1Thank You