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Binary Fusion is a Type of Asexual Reproduction...Fission, in biology, is the division of a single entity into two or more parts and the regeneration of those parts into separate entities resembling the original. The object experiencing fission is usually a cell,

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Write a short notes on conservation of forest and wildlife

Posted by Rounak Anand 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

Conservation efforts in India are

Hundreds of species of butterflies, beetles and one species of dragonfly were included in the list of protected species.
Project Tiger is a conservation project in India which is dedicated to the Royal Bengal Tiger. India and Nepal are home to about two-thirds of the tiger population in the world.
The tiger population in India has decreased due to poaching for lucrative trade in tiger skin, claws and bones, and other body parts used in traditional medicines.

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What is pelvic gridle and how it widens ?

Posted by Rahul Ronnie 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

Pelvis, also called bony pelvis or pelvic girdle, in human anatomy, basin-shaped complex of bones that connects the trunk and the legs, supports and balances the trunk, and contains and supports the intestines, the urinary bladder, and the internal *** organs. The pelvic girdle, as I said above, is made up of three fused bones: the ischium, the ilium, and the pubis. The pubis forms the anterior part of the pelvic girdle. It is a flattened, irregular-shaped bone that articulates with the pubic symphysis, a cartilaginous joint. Widening of the hip bones occurs as part of the female pubertal process, and estrogens (the predominant *** hormones in females) cause a widening of the pelvis as a part of sexual differentiation. Hence females generally have wider hips, permitting childbirth.

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What are electrod

Posted by Unnati Saraswat 5 years, 8 months ago

CBSE > Class 08 > Science

1 answers

Rahul Ronnie 7 years, 1 month ago

An electrode is a conductor which is in contact with non-mettalic things like liquid or a gas .

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What is facial

Posted by Aryan Gupta 7 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Anu Verma 7 years, 1 month ago

Rubbish question

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Rahul Ronnie 7 years, 1 month ago

Is this a science question ?

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WhaI is the friction

Posted by Chakraveer Verma 7 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Satish Yadab 7 years, 1 month ago

the resistance that one surface or object encounters when moving over another is called friction.

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Royal Girl 7 years, 1 month ago

friction is a force which opposes the direction of the motion of an object

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Yogita Ingle 7 years, 1 month ago

Friction is a force that opposes the relative motion between two surfaces of objects in contact. The force of friction always acts in a direction opposite to that of the applied force. Friction exists between two surfaces due to irregularities on the surfaces of the objects in contact, interlocking of micro-level irregularities of the two surfaces and ploughing of harder surfaces into smoother surfaces.

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What is difference between music and noise

Posted by Goouravjain Jain 7 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Royal Girl 7 years, 1 month ago

sound which is unwanted is noise and sound which is plesent for us is music

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Yogita Ingle 7 years, 1 month ago

Excessive or unwanted sounds are called noise. Noise is unpleasant to hear. E.g., Sound produced by a bunch of students speaking together in the classroom.
The sounds which are pleasing to the ears are called music. It gives a soothing effect rather than creating a chaos in mind. E.g., Sound produced by a harmonium sound.
Music becomes a noise when it crosses the bearable range of sound for ears.

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Neha Gurjar 7 years, 1 month ago

Sounds which are pleasant to our ears are called music, whereas unpleasant sound are called noise

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How to reproduce my wife don't have babies

Posted by Abhijeet Jha 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Rahul Ronnie 7 years, 1 month ago

What you meant by this question boy

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What are the types of asexual reproduction? Explain in brief.

Posted by Jayajeet Manoj 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

1) Fission: Fission means division. During asexual reproduction, the parent cell divides into two or more cells. Unicellular organisms show different patterns of cell division according to their cell structure. For example, an amoeba can divide itself into two at any plane but the division in euglena is longitudinal.

Fission can be of two types, namely, binary fission and multiple fission. In binary fission, parent cell divides into two equal halves called daughter cells. Daughter cells are identical to each other and to their parent cell. Organisms like the amoeba, bacteria, euglena, etc., exhibit binary fission.

2) Fragmentation: Fragmentation is another mode of asexual reproduction. Multi-cellular organisms like planaria, spirogyra, etc. reproduce by fragmentation. The parent body divides into two or more fragments. Later, each fragment develops into a new individual.
3) Regeneration: When a lizard loses its tail, it grows a new one. This is known as regeneration. In many organisms, there are specialized cells, which can differentiate and grow into a new organism. Organisms like hydra and planaria also show regeneration. In these organisms, when the cell divides into numerous pieces, each piece proliferates and differentiates to regenerate new organisms.
4) Budding: Some organisms develop buds on their body. These buds develop into a new individual. This is known as budding. An example is a hydra. From the parent hydra, a bud arises which eventually matures into a new hydra. Once it gets mature, it detaches from the parent body.
5) Vegetative Propagation : Plants reproduce asexually through their vegetative parts such as leaves, roots, stem, and buds. This is known as vegetative propagation. For example, onion bulbs, tubers of potato, runners/stolon, etc. Vegetative propagation is much faster than the sexual reproduction in plants. This can be done artificially as well, which is widely employed in horticulture.

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"All cells in an organism do not have the same shape". Justify the above statement by drawing at least three different cell types found in human beings

Posted by Prasanna Sinha 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Komalpreet Saggu 7 years, 1 month ago

Amoeba

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What do you known about menstrual cycle

Posted by Mohd. Zaid 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

The cycle of building and shedding is called the menstrual cycle. A typical cycle is 28 days, although cycles from 21 to 45 days can often occur. Females do not have periods until puberty. The average age for a female's first period is age 12. The menstrual cycle continues regularly until menopause occurs, around age 50. The menstrual cycle also ceases during pregnancy.

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What is zygote.

Posted by Abhishek Yadav 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Neha Gurjar 7 years, 1 month ago

Fertilised egg is called zygote

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What is matamorphosis

Posted by Abhishek Yadav 7 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Aayush Sharma 7 years, 1 month ago

Metamorphosis is the process of development of egg into frog or eggs into worms into a butterfly

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Vishaal Narayanan 7 years, 1 month ago

Life cycle of a frog

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How can we measure atmospheric pressure ?

Posted by Anas Khan 7 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Yogita Ingle 7 years, 1 month ago

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. A simple barometer consists of a long glass tube (closed at one end, open at the other) filled with mercury and turned upside down into a container of mercury. The barometer works by balancing the mercury in the glass tube against the outside air pressure, just like a set of scales. As air pressure increases—that is, as the air becomes heavier—it pushes more of the mercury up into the tube. As air pressure decreases, more of the mercury drains from the tube. So the level of mercury in the tube provides a precise measure of air pressure.

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Neha Gurjar 7 years, 1 month ago

By a barometer..

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What is an echo

Posted by Vedant Joshi 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Anas Khan 7 years, 1 month ago

The sound that is reflected back to our ears a number of time is called echo

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what is exploring force

Posted by Piyush Bali 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

Exploring Forces - Gravity" is a hands on activity in which visitors discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup. Gravity holds us to the surface of the Earth and keeps our atmosphere wrapped around our planet. An object's weight is a measure of the gravitational force acting on it.

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What is metal and non metal

Posted by Satyam Vishwakarma 5 years, 8 months ago

CBSE > Class 08 > Science

1 answers

Neeraj Kumar Rathiya 7 years, 1 month ago

What is a metal and non metal

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What is farmentation

Posted by Divyansh Tomar 7 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Divyansh Tomar 7 years, 1 month ago

Thanks yogita.will you become my friend????????

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Yogita Ingle 7 years, 1 month ago

Fermentation is an anaerobic process which takes place in the absence of oxygen. It converts sugar substrates into alcohol and carbon dioxide. Fermentation process also releases certain amount of energy
Fermentation is the process which involves chemical changes in the organic substrate brought about by microbial enzymes.
Commercially, fermentation s can be divided into four types.

Production of biomass
Production of extracellular metabolites
Production of intracellular components
Transformation of substrate

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Arnav Shrivastava 7 years, 1 month ago

Yes

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Why lysosomes are called suicidal bags of the cell?

Posted by Ap The Legend 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

Lysosomes are cellular organelles that contain digestive enzymes that break down waste materials, foreign material and cellular debris. Lysosomes are capable of digesting nucleic acid, polysaccharides, fats, and proteins. Along with them lysosomes also digest or damage its own cells by its own enzymes, which lead to cell death. This process is called as autolysis. Hence lysosomes are also called as suicide bags.

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How did made the cell

Posted by Madhumati Mohanty 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Rahul Ronnie 7 years, 1 month ago

You don't know how to write English boy ?

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What is cell membrane, nucleus ND cytoplasm

Posted by Kavana Raj 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

Every cell is covered by a thin sheet of skin called cell membrane or plasma membrane.
The jelly-like substance between the nucleus and the cell membrane is called cytoplasm.
Nucleus is a large, spherical organelle present in all the cells that controls all the activities of the cell.

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Why is it dangerous to burn polymers

Posted by Anika Manaktala 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Anika Manaktala 7 years, 1 month ago

It is dangerous to burn polymers as it leaves poisonous gases along with smoke which is very harmful for health.these poisonous gases can cause breathing problems like asthama.

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,what is nationlism

Posted by Gaurav Gogo 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Neha Gurjar 7 years, 1 month ago

First of all its nationalism not nationlism... Nd nationalism is the desire of a group of people who share the same race, culture, language, etc. to form an indepented country#

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What is forcd

Posted by Aashish Bairagi 7 years, 1 month ago

CBSE > Class 08 > Science