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What are the characters for classification

Posted by Jaishree Sanodiya 7 years, 4 months ago

CBSE > Class 09 > Science

2 answers

Manishi Tandon 7 years, 4 months ago

Plz write again

Manishi Tandon 7 years, 4 months ago

I am not understand

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What is binary fission

Posted by Manishi Tandon 7 years, 4 months ago

CBSE > Class 09 > Science

6 answers

Manishi Tandon 7 years, 4 months ago

Please

Manishi Tandon 7 years, 4 months ago

Next question ka bhi anw

D...A Singh 7 years, 4 months ago

Binary fission is a type of asexual reproduction and it body is divided into two or more part but it a unicellular

Manishi Tandon 7 years, 4 months ago

Notmention

Manishi Tandon 7 years, 4 months ago

Sure write anw

Yogita Ingle 7 years, 4 months ago

Binary fission is a type of asexual reproduction and the most common form of reproduction in prokaryotes and some single-celled eukaryotes. It is a method of separating a body into two new bodies. In this, an organism duplicates its genetic material and divides into two parts where every new organism receives one copy of DNA.

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Plz tell

Posted by Manishi Tandon 7 years, 4 months ago

CBSE > Class 09 > Science

2 answers

Manishi Tandon 7 years, 4 months ago

Ara dado answ kese ko atha ha ya nahi

Manishi Tandon 7 years, 4 months ago

Plz tell

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What is microcondria

Posted by Manishi Tandon 7 years, 4 months ago

CBSE > Class 09 > Science

7 answers

Manishi Tandon 7 years, 4 months ago

Aur question ka bhi answer

Manishi Tandon 7 years, 4 months ago

Sure write anw

Vijayalakshmi J 7 years, 4 months ago

This is cellular respiration or oxidation of glucose to generate energy by mitochondria.

Vijayalakshmi J 7 years, 4 months ago

Mitochondria is the cell organelle present inside the eukaryotic cell. It is know as the power House of the cell, because of its function. Glucose from the digest food and oxygen from the inhaled air is used to generate energy in the form of ATP(Adenosine Tri Phosphate)+Carbon dioxide and water vapour.

Manishi Tandon 7 years, 4 months ago

Am not understand

Manishi Tandon 7 years, 4 months ago

Plz write clear

Bhargav Parate 7 years, 4 months ago

Power hoyse of cell

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Why come hair fall

Posted by Yashi Mishra 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Priyanshu Jaat 7 years, 4 months ago

Because of weakness in human body

3Thank You

ANSWER

Give five Kingdom concept

Posted by Keerthivasan Pugalenthi 7 years, 4 months ago

CBSE > Class 09 > Science

2 answers

Nishant Sahu 7 years, 4 months ago

Monera,Protista,Fungi,Plantae,Animalia.

Vijayalakshmi J 7 years, 4 months ago

R.H. Whittaker (1969) proposed a Five Kingdom Classification-Monera, Protista, Fungi, Plantae, and Animalia Kingdoms. It is classified based on cell type, cell wall, nuclear membrane, modes of nutrition and body-organization.

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Acoording to law of conservation of mass "mass cna neighter be created nor be destroyed'' so in the formula of einsteien is e=mc aquare there mass create energy how it happen

Posted by Asmit Dubey 7 years, 4 months ago

CBSE > Class 09 > Science

2 answers

Asmit Dubey 7 years, 4 months ago

Thanks dear for give me answer of this question

Palak ?? 7 years, 4 months ago

Hey Asmit..here energy is not created by mass ......it is calculated through mass

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What is the ratio of average speed and average velocity when the motion is in the straight line path

Posted by Asmit Dubey 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Asmit Dubey 7 years, 4 months ago

1:1 is the ratio of average speed and average velocity when the motion in straight line path

ANSWER

What is biotic factors

Posted by Asmit Dubey 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 4 months ago

Biotic factors or components are mainly referred to all the living things in the ecosystem. Their presence or their materials affect the composition of an ecosystem. These materials include organisms, interactions, parts, wastes and also their presence. Factors like disease, predation, and parasitism can also be considered as biotic.

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What is rhizobium

Posted by Addy Bahuguna 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 4 months ago

Rhizobium (plural: Rhizobia) is the nitrogen fixing bacteria present mainly in the soil. The Rhizobia chemically convert the nitrogen from the air to make it available for the plant.These bacteria live in symbiotic relationship with leguminous plants. The Rhizobia live in nodules in the roots of the plant. These bacteria convert atmospheric nitrogen to nitrates and nitrites which can be used by the plants directly. Nitrogen fertilizers are not required.

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What happens when pure copper sulphate crystals (blue in colour) are poured into water

Posted by Abhay Singh 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 4 months ago

If Copper sulphate crystals are added to water it is called 'hydrated copper sulphate solution'.

If it is added to cold water then:- it is more saturated

but if it is added to warm water then:- it is unsaturated

and it turns bluish in colour in dissolving in water

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What are the 5 major characteristics used to hierarchical classification

Posted by Jaishree Sanodiya 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 4 months ago

The three main characteristics used for a hierarchical classification are:

Complexity of cell structure, i.e., type of cell—prokaryotic or eukaryotic. As a eukaryotic cell has membrane-bound organelles including a nucleus, the cellular processes can be carried out efficiently in isolation from other cells. On the other hand, the organisms without a clearly demarcated nucleus and other organelles need to have very different biochemical pathways. This would naturally have a great effect on every aspect of cell design. Moreover, the nucleated cells would have the capacity to participate in making a multicellular organism as they are capable of taking up specialised functions.
Body organisation, i.e., whether the organism is unicellular or multicellular. In a eukaryotic multicellular organism, cells that group together to form a single organism use the principle of division of labour. In this type of body design, all cells would not be identical. Rather, groups of cells will carry out specialised functions. Thus, this makes a very basic distinction in the body designs of organisms. As a result, an amoeba will be very different in its body design from a fish.
Mode of nutrition: autotrophic or heterotrophic. Plants make their own food while animals depend on plants or other animals for their food. For this they will definitely have different body design.

3Thank You

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Differences between parenchyma collenchyma sclerenchyma

Posted by Tanish Chimaniya 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 4 months ago

Parenchyma	Collenchyma	Sclerenchyma
It is made up of cells having very thin cell wall.	cells of collenchyma has unevenly thickened cell wall.	They are made up of cells having thick cell wall.
The cells are loosely packed.	Cells have little space between cells.	No intercellular spaces present between them, cells are tightly packed.
The cell wall is made up of cellulose.	The cell wall is made up of hemicelluloses and pectin.	The cell wall is made up lignin.
It is found in abundant. Most of the plant tissues are made up of parenchyma cells.	Collenchymas cells make up the epidermal layers.	The outer woody stem portion of large trees is made up of sclerenchyma cells.
It constitutes living cells.	It also constitutes living cells.	Matured cells are dead.

ANSWER

When was 'g' is -ve or +ve.....

Posted by Tejas Kumar 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Prateek Srivastava 7 years, 4 months ago

When a body is going opposite of earth means in upper direction then the body is in negative Gravity but but when object is falling from some height gravity is positive

ANSWER

Formula with atomic no and valencies of all elements

Posted by Suswagat Parida 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Rishika Vishwa 7 years, 4 months ago

Name of element, symbol, atomic no.,val, at.ms. hydrogen. H. 1. 1. 1 heliem. He. 2. 0 4 litheum. Li. 3. 1. 7 beryllium. Be. 4 2. 9 boron. B. 5. 3. 11 carbon. C. 6. 4. 12 nitrogen. N. 7. 3. 14 oxygen. O. 8. 2. 16 fluorine. F. 9. 1. 19 neon. Ne. 10. 0. 20 sodium. Na. 11. 1. 23 magnesium. Mg. 12. 2. 24 aluminium. Al. 13. 3. 27. silicon. Si. 14. 4. 28 phosphorus. P. 15. 3,5. 31 sulphur. S. 16. 2. 32 chlorine. Cl. 17. 1. 35 argon. Ar. 18. 0. 40 pottasium. K. 19. 1. 39 calcium. Ca. 20. 2. 40 I hope this would help you ?

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Example of 2 low of motion

Posted by Prince Gupta 7 years, 4 months ago

CBSE > Class 09 > Science

4 answers

Prateek Srivastava 7 years, 4 months ago

Example of first law of motion (a ball is on ground will always on rest whenever external force is not applied then the ball will not move or A ball is in motion then the ball will remain motion external force is not applied the ball will not stop) Example of second law (if you throw and throw ball on ground when the ball then the ball will also jump from ground to some height ).

Ankit Sharma 7 years, 4 months ago

Momentum is a product of mass and velocity

Ankit Sharma 7 years, 4 months ago

Rate to change of momentum

Rishika Vishwa 7 years, 4 months ago

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. Or. Newton's second law states that acceleration of a particle is dependent on the forces acting upon the particle and the particle's mass. ... We can express Newton's second law in terms of momentum. The momentum p of a particle is defined as the product of its mass m and velocity v Examples are :- If you use the same force to push a truck and push a car, the car will have more acceleration than the truck, because the car has less mass. It is easier to push an empty shopping cart than a full one, because the full shopping cart has more mass than the empty one.

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What is prorefira

Posted by Gaurav Rai 7 years, 4 months ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 7 years, 4 months ago

The organisms belonging to this group have holes.
The animals of this group are non- motile and are attached to some rigid support.
The organisms belonging to this group have pores throughout their body.
They have a canal system circulates the water throughout the body of these organisms to transport the food and oxygen.
These organisms are covered with a hard external layer or skeleton.
Examples of animals belonging to this group are Euplectelea, Sycon, Spongilla.

Vishu Jaat 7 years, 4 months ago

4Thank You

ANSWER

An element E forms a chloride ECl 4 1. Write the formula of its oxide 2. Write the formula of oxide of trivalent atom

Posted by Sravika S 7 years, 4 months ago

CBSE > Class 09 > Science

0 answers

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What is the value of "g " is it 9.8 or 10

Posted by Devadharshini Karthikeyan 7 years, 4 months ago

CBSE > Class 09 > Science

2 answers

King Rohit Mishra 7 years, 4 months ago

Both are correct

Vijayalakshmi J 7 years, 4 months ago

Both are correct and you could use the round of number 10, so it will be easy for calculation.

ANSWER

Why mitochondria is called power hose of cell

Posted by Saurav Singh 7 years, 4 months ago

CBSE > Class 09 > Science

4 answers

Akash Tadwal 7 years, 4 months ago

Mitochondria called powerhouse of the cell because he generate energy to use their life process in the form of DNA so it is called powerhouse of the cell

Richa Yadav 7 years, 4 months ago

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

Kaushik Srivastava 7 years, 4 months ago

Mitochondria is called power house of cell because the energy which is required to do all the activities which is realiesed by mitochondria in the form of (APT)

Amisha Rawat 7 years, 4 months ago

Because it provide energy and supply food and water and minerals to cell

ANSWER

What is covalency ? Two hydrogen atoms combine to form a molecule of hydrogen (H 2 ). what is the covalency of H-atoms?

Posted by Shivansh Handa 7 years, 4 months ago

CBSE > Class 09 > Science

1 answers

Vijayalakshmi J 7 years, 4 months ago

covalency is the combining capacity of an atom i.e. no.of electrons it share with other atom when forming covalent bond. Hydrogen has 1electron in its outermost shell which combines another hydrogen atom to form the Hydrogen molecule.

ANSWER

What is j.j.thomson model of the atom ?

Posted by Shivansh Handa 7 years, 4 months ago

CBSE > Class 09 > Science

2 answers

Akash Tadwal 7 years, 4 months ago

JJ Thomson model first proposed that an atom consists of the positively charged sphere and and electrons are embedded in its second if the positive the positive and negative charge are equal in magnitude so atom as a time is a wall electrically neutral

Vijayalakshmi J 7 years, 4 months ago

JJ Thomson Atomic model is like watermelon, in which the red part is positively charged(proton) and the seeds embedded in it are electrons (negatively charged). It is also called as plum pudding model.