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    • Posted by King?Adithya H. M.. 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 5 years, 1 month ago

     Vegetative Propagation

    It is the mode of asexual reproduction in plants. Plant parts are detached from the parent & form a new plant. Structures which help in vegetative propagation are called Vegetative propagules. Example: Rhizome, tuber etc.

    Natural vegetative propagation

    • Root
    • Stem
    • Leaves

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    • Posted by King?Adithya H. M.. 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 5 years, 1 month ago

    i. The mechanism of determining the *** of an individual is known a *** determination.
    ii. In some organisms, environmental factors such as temperature determine the *** of the organism in the egg.
    iv. Each human cell contains 23 pairs (46 numbers) of chromosomes, out of which 22 pairs are called autosomes, which are similar in both males and females and are responsible for the various characteristics of an individual. The last pair is that of the *** chromosomes that determine the *** of the individual. *** chromosomes in humans are of two types X and Y.
    v. Females have two X chromosomes in their cells while males have one X and one Y in their cells.
    vi. When the sperm containing the X chromosome fertilises the egg, then the zygote develops into a female. When the sperm containing the Y chromosome fertilises the egg, then the zygote develops into a male.

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    • Posted by King?Adithya H. M.. 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by King?Adithya H. M.. 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by King?Adithya H. M.. 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    Sarika Shukla 5 years, 1 month ago

    The heredity in most of the living organisms is found to be regulated by certain definite principles. Mendel opted for garden pea (pisum sativum) to conduct his experiments. His experiments with garden pea along with the inferences drawn together constitute, the foundation of modern genetics. Mendel's contributions were unique because of the use of distinct variables and application of mathematics to the problem. He kept the record of each generation separately and studied the inheritance of only one pair of characters at a time.

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    Yogita Ingle 5 years, 1 month ago

    Inheritance is the acquiring of genetic characteristics or traits from parents by their offspring. In humans, both parents equally contribute to the inheritance of traits. In 1860, Gregor Mendel studied the rules of inheritance of traits. He conducted an experiment on pea plants for the same. He cultivated pea plants and observed their pattern of inheritance from one generation to the next generation. This observation resulted in the discovery of three laws of inheritance, famously known as Mendel’s laws of Inheritance. Let us have a brief discussion on the contribution of Mendel in establishing the law of inheritance of traits.

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    • Posted by Nithara K 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    Shubham Gupta 5 years, 1 month ago

    The elements has no. Of shells occurs that's the period of that one atom

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    Dhhruv Dj 5 years, 1 month ago

    First take the Atomic number of the given element. Then calculate the electronic configuration using the atomic number 2+8+7=17 therefore the electronic configuration will be 2, 8, 7. Here we find that the no. of valence electrons of element is 7 as the valence shell has 7 electrons.

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    • Posted by Ayush Biswas 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    Shubham Gupta 5 years, 1 month ago

    1. It secrete Pancreatic Amylase. 2.It secrete Pancreatic Trypsin . 3.It secrete Pancreatic Pepsin These breakdown the bolus into there simplest form .

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    Dhhruv Dj 5 years, 1 month ago

    It Produces 1. Pancreatic Amylase 2. Pancreatic Trypsin 3. Pancreatic Pepsin These breakdown the bolus into there simplest form . Thanks ??

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    • Posted by Anuj Kumar 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 5 answers

    Anuj Kumar 5 years, 1 month ago

    Right answer is between focus and pole

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    Niyati Garg 5 years, 1 month ago

    Between focus and pole

    1Thank You

    Dhhruv Dj 5 years, 1 month ago

    A concave mirror produces a magnification of +4 when the object is placed between the focus and the pole. This shows that the image is erect and virtual. An erect and virtual image is formed in the case of the concave mirror only when the object is kept between the focus and pole. Please check out this my dear friend ?

    1Thank You

    Noname Forreal 5 years, 1 month ago

    It will surely be beyond C' and other then that sufficient information is not provided in the que.

    2Thank You

    Ayush Biswas 5 years, 1 month ago

    Lower of principal axis

    3Thank You

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    • Posted by Lisa Anto 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 3 answers

    Niyati Garg 5 years, 1 month ago

    Reproduction is not necessary for an individual as it is not a life process and consumes large amounts of energy. But it is a necessary for the survival of species. It is only through the reproduction we can continue our species

    1Thank You

    Francis Lalu 5 years, 1 month ago

    For survival, an individual needs energy which it obtains from life processes such as nutrition and respiration. Reproduction does not provide energy for survival. Instead, reproduction ensures transfer of genetic material from one generation to the next which helps in continuation of species. Hence, it is an important phenomenon for maintaining continuity of species.

    4Thank You

    Yogita Ingle 5 years, 1 month ago

    (a) For survival an individual needs energy which it obtains from life processes such as nutrition and respiration.
    (b) Reproduction does not provide energy.

    (c) Reproduction ensures transfer of genetic material from one generation to the next which helps in continuation of species.

    Thus, reproduction does not help survive rather its an energy consuming process, however it is essential for the continuation of the species

    4Thank You

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    • Posted by Bhavya Mugali 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 3 answers

    Anuj Kumar 5 years, 1 month ago

    Already notes are given in this app

    0Thank You

    Priyanka .A 5 years, 1 month ago

    All the important questions in this app itself pa

    1Thank You

    Abhi Shek 5 years, 1 month ago

    But how can i send it here

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    • Posted by Bobby Dubey 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Bobby Dubey 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 5 answers

    Niyati Garg 5 years, 1 month ago

    It will be a convex mirror. It is used as a rear view mirror in cars because it is curved outward and always formed a diminished and virtual image

    1Thank You

    Shubham Gupta 5 years, 1 month ago

    Concave mirror

    1Thank You

    Dhhruv Dj 5 years, 1 month ago

    Concave mirrors , It is used as rear view in vehicles

    0Thank You

    Yogita Ingle 5 years, 1 month ago

    The mirror is a convex mirror as convex mirror always forms an image which is virtual, erect and diminished, when the object is placed in front of the mirror. The Ray diagram is as follows:

    Convex mirrors are used in following applications: 

    1. In vehicles: Convex mirrors are used as rear-view mirrors in vehicles because the image obtained with the help of convex mirror is highly diminished in size and thus gives a wider field of view and helps the driver of the vehicle to view the traffic in much larger area behind the vehicle. 

    2. In shops: Convex mirrors are installed in shops to avoid the stealing of items by any customer or thieves. The shopkeeper can keep an eye on customer as a convex mirror forms a virtual, erect and diminished image and thus acts as shop security mirror.

    1Thank You

    Anmol Verma 5 years, 1 month ago

    The type of mirror used here is a CONVEX MIRROR because it always forms a virtual and erect image . This type of mirror (convex mirror) is commonly used as REAR VIEW MIRRORS IN VEHICLES..

    2Thank You

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    • Posted by ಹರ್ಷನಂದ ಹರ್ಷನಂದ 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    ಹರ್ಷನಂದ ಹರ್ಷನಂದ 5 years, 1 month ago

    ಲೇ ಸಿಸ್ಯ ಕನ್ನಡದವನೇನೊ ನೀನು,ಯಾವೂರೋನು ಕನ್ನಡದಲ್ಲಿ ಹೇಳೋ ಮಚ್ಚ ಅಂದ್ರೆ ಇಂಗ್ಲಿಷ್ ಕಳ್ಸಿದ್ಯಲ್ಲೋ ಗುಲ್ಡು

    1Thank You

    King?Adithya H. M.. 5 years, 1 month ago

    Biology is the natural science that studies life and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and evolution. Despite the complexity of the science, certain unifying concepts consolidate it into a single, coherent field

    2Thank You

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    • Posted by Laxmi S.P? 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 4 answers

    Francis Lalu 5 years, 1 month ago

    Excretion in Humans: The biological process involved in the removal of various harmful metabolic wastes from the body is called excretion. The excretory system of human beings includes a pair of kidneys, a pair of ureters, a urinary bladder and a urethra. Let us see this process in detail now. The basic filtration unit in the kidneys, is a cluster of blood capillaries.Each such cluster is associated with the cup-shaped end of a tube, that collects the filtered urine. These filtration units are called nephrons, and each kidney contains several such clusters.The urine forming in each kidney then enters the ureter, which connects the kidneys with the urinary bladder.Urine is stored in the urinary bladder until the pressure of the expanded bladder leads to the urge to pass it out through the urethra.

    3Thank You

    Francis Lalu 5 years, 1 month ago

    Respiration in humans: Let us now see how respiration takes place in humans. We have broken down the process in points for better understanding, which you can now see on your screen. In human beings, air is taken into the body through the nostrils and is filtered by fine hair that line the passage.The air passes through the throat where rings of cartilage are present, which ensure that the air-passage does not collapse.The air then reaches the lungs, where the passage divides into smaller and smaller tubes which finally terminate in alveoli.  These alveoli are the places where exchange of gases takes place.The blood brings carbon dioxide from the rest of the body, which is released into the alveoli, and the oxygen in the alveolar air is taken up by blood, to be transported to all the cells in the body.Now the oxygen that is taken in our body, has to be transported all parts of the body. This is done by the respiratory pigment called haemoglobin, present in red blood cells.

    4Thank You

    Francis Lalu 5 years, 1 month ago

    Nutrition of Ameoba: Amoeba takes in food using temporary finger-like extensions on the cell surface which fuse over the food particle forming a food-vacuole. Inside the food vacuole, complex substances are broken down into simpler ones which then diffuse into the cytoplasm. Important diagram – amoeba engulfing a food vacuole

    2Thank You

    Francis Lalu 5 years, 1 month ago

    Nutrition in autotrophs: Autotrophs fulfil their food and energy requirements by the process of photosynthesis. The steps that take place during photosynthesis are: (i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates. The carbon dioxide required by the plant is obtained through tiny pores present on the surface of the leaves called stomata. Note that the exchange of gases occurs across the surface of stems, roots and leaves as well. Water used in photosynthesis is taken up from the soil by the roots in terrestrial plants. Other materials like nitrogen, phosphorus, iron and magnesium are taken up from the soil. Important diagrams – from this unit, diagramatic representation of cross-section of a leaf and stomatal pores can be asked, so make sure you practice drawing them atleast once before the exam.

    2Thank You

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    • Posted by Akash Singh 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    Tarannum Jahan 5 years, 1 month ago

    If you point your pointer finger in the direction the positive charge is moving, and then your middle finger in the direction of the magnetic field, your thumb points in the direction of the magnetic force pushing on the moving charge.

    1Thank You

    Akash Singh 5 years, 1 month ago

    Kisi ko pata h

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    • Posted by Laxmi S.P? 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 4 answers

    Shubham Gupta 5 years, 1 month ago

    By hit and try method se easily ho jaye ga

    0Thank You

    King?Adithya H. M.. 5 years, 1 month ago

    When you balance a chemical equation, you change coefficients. You never change subscripts. A coefficient is a whole number multiplier. To balance a chemical equation, you add these whole number multipliers (coefficients) to make sure that there are the same number of atoms on each side of the arrow.

    2Thank You

    Francis Lalu 5 years, 1 month ago

    There is a strategy that will help you balance equations more quickly. It is called balancing by inspection. Basically, you look at how many atoms you have on each side of the equation and add coefficients to the molecules to balance out the number of atoms.

    1Thank You

    Shaanveer Brar 5 years, 1 month ago

    a equation can be balanced by the number of atoms equal on the rectant and on the product side

    3Thank You

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    • Posted by Sakshi Joshi 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 3 answers

    Shubham Gupta 5 years, 1 month ago

    Na2Co3 + 2HCl =2NaCl + 2HCo3

    0Thank You

    Amritansh Bhardwaj 5 years, 1 month ago

    Na2CO3+HCl=NaCl+NaHCO3

    0Thank You

    Francis Lalu 5 years, 1 month ago

    Na2​CO3​+HCl⟶NaCl+NaHCO3​   No. of Atom No. of Atom Na  2 2 C  1 1 O 3 3 H  1 1 Cl   1 1

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    • Posted by Shivi Dubey 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    King?Adithya H. M.. 5 years, 1 month ago

    Inhalation is a part of breathing where the air is taken into the lungs by creating negative pressure by the contraction of respiratory muscles and diaphragm............................................................................  Exhalation is a part of breathing where the air is drawn out of the lungs by the relaxation of respiratory muscles. Inhalation is also called inspiration

    2Thank You

    Arpita .9 5 years, 1 month ago

    Inhalation mean taking inside oxygen and exhalation mean exhaling carbon outside our body

    1Thank You

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    • Posted by Shivi Dubey 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    King?Adithya H. M.. 5 years, 1 month ago

    1 : the act or process of breathing : the inhaling of oxygen and the exhaling of carbon dioxide....................................................................... 2 : the process by which cells use oxygen to break down sugar and obtain energy. respiration.

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    Richa Singhal 5 years, 1 month ago

    Respiration refers to the process by which energy is liberated by breaking down complex inorganic substances using oxygen.

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    • Posted by Rebekah Augustine 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 5 years, 1 month ago

     

    The menstrual cycle is a reproductive cycle which takes place in the females of the group of primates. The menstrual cycle is divided into four phases:

    (i) Menstrual phase: It extends from 1st to 4th day of the cycle. It occurs in the absence of fertilization. During this phase, bleeding occurs as the endometrium of the uterus is sloughed off. The menstrual flow consists of secretion of endometrial glands, cell debris, unfertilized ovum. After 4th day, once again the FSH secretion from the pituitary is resumed and the new follicle starts developing.

    (ii) Follicular phase: When the ovary is in this phase, uterus enters in the proliferative phase. This takes place from 5th to 13th day of the cycle. During this phase new primordial follicle in the ovary develops due to the action of FSH from the pituitary. It gradually changes into Graafian follicle and production of oestrogen starts. Only one follicle develops in one cycle.Corresponding to the changes in the ovary, uterus also undergoes proliferation. Endometrial glands, stimulated by oestrogen do repair process of uterus. 

    (iii) Ovulatory phase: During this phase, ovulation takes place. It usually occurs on 14th day. Mature Graafian follicle ruptures due to LH secreted by pituitary. Graafian follicle bursts and releases the ovum. This ovum along with the follicular fluid is picked up by the fimbriae of infundibulum of fallopian tube. It passes through fallopian tube, where, if it happens to meet a sperm, it is fertilized. If not fertilized, the ovum degenerates.

    (iv) Luteal phase: It corresponds with the secretory phase in uterus. It takes place between 15th to 28th day of the cycle.

    Ovarian changes: In the ovary, corpus luteum is formed from empty Graafian follicle. Progesterone is secreted now. If ovum is fertilized, corpus luteum is retained. LH and LTH from pituitary help in the maintenance of corpus luteum. If ovum is not fertilized, corpus luteum degenerates and forms corpus albicans.

    Uterine changes: Under the influence of progesterone, there is increase in the thickness of endometrium. Endometrial glands grow and become secretory. Progesterone is responsible for the maintenance of pregnancy. When fertilized ovum reaches the uterus, it is implanted and placenta is formed. Till placenta becomes functional corpus luteum keeps on producing progesterone. But when progesterone source is cut off, endometrium sloughs off and menstruation begins.

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    • Posted by Ayushi Dixit 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    Meghna Thapar 5 years, 1 month ago

    A coil with many circular close turns of insulated copper wire (like a cylinder as shown above) is a solenoid. One end of such a solenoid behaves like the north pole and the other as a south pole. Therefore magnetic field due to current in the solenoid is similar to a bar magnet. A solenoid is an essential coil of wire that is used in electromagnets, inductors, antennas, valves, etc. The application of a solenoid differs in numerous types like medical, locking systems, industrial use, the bottom line and Automotive Solenoid Applications.

    0Thank You

    Pushkar Choudhary 5 years, 1 month ago

    8

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    • Posted by Ayushi Dixit 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 3 answers

    Aanya Jain 5 years, 1 month ago

    The imaginary field lines which represents the force of magnetism is known as magnetic field lines

    0Thank You

    Nishtha Yadav 5 years, 1 month ago

    Imaginary lines which represents the magnetic field

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    Meghna Thapar 5 years, 1 month ago

    The magnetic field is an abstract entity that describes the influence of magnetic forces in a region. Magnetic field lines are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole at any given position. Because monopoles are not found to exist in nature, we also discuss alternate means to describe the field lines in the sections below. One useful analogy is the close connection between magnetic monopoles and electric charges. A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetized materials. A charge that is moving in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.

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    • Posted by Ayushi Dixit 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 4 answers

    Aanya Jain 5 years, 1 month ago

    The area in which we experience a magnetic force is known as magnetic field.

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    Mr Vip 5 years, 1 month ago

    The region or area around a magnet from where it's influence can be felt is known as magnetic field of the magnet

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    Nishtha Yadav 5 years, 1 month ago

    Space around a magnet in which magnetic force can be detected

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    Meghna Thapar 5 years, 1 month ago

    A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetized materials. A charge that is moving in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. The definition of a magnetic field is a place in space near a magnet or an electric current where a physical field is created from a moving electric charge that creates force on another moving electric charge. An example of a magnetic field is the Earth's magnetic field. noun.

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    • Posted by Ayushi Dixit 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 1 answers

    Meghna Thapar 5 years, 1 month ago

    List of Properties of Magnet:
    Magnets have certain important properties. They are:

    1. Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel.
    2. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other.
    3. Directive Property – A freely suspended magnet always points in a north-south direction.

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    • Posted by Vision X 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 1 answers

    Meghna Thapar 5 years, 1 month ago

    In the absence of decomposers in the environment, this breakdown will not occur and hence, the nutrients will not be released. Due to this, plants will not get sufficient nutrients. They perform a valuable service as Earth's cleanup crew. Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. Imagine what the world would look like! More importantly, decomposers make vital nutrients available to an ecosystem's primary producers—usually plants and algae.

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    • Posted by Irshadahmad Kolhar 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    King?Adithya H. M.. 5 years, 1 month ago

    Displacement reaction:-A + B-C → A-C + B,,When balancing a decomposition reaction, the number of moles should be equal on both sides. For example, in the equation NaCl gives you Na + Cl2, there is one mole of Na on both sides, but there is one mole of Cl on the left side and two moles on Cl on the right side.

    0Thank You

    Account Deleted 5 years, 1 month ago

    1.Displacement reation :- Zn+2AgNO3---->Zn(NO3) 2+2Ag 2 Decomposition reaction:- 2AgCl----->Ag+Cl2

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    • Posted by Ritik Kumar 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    King?Adithya H. M.. 5 years, 1 month ago

    The ventricles are the two lower chambers of the heart. Blood empties into each ventricle from the atrium above, and then shoots out to where it needs to go. The right ventricle receives deoxygenated blood from the right atrium, then pumps the blood along to the lungs to get oxygen.

    2Thank You

    Deep Arshnoor 5 years, 1 month ago

    CO2 is a waste product of cellular respiration. This CO2 is transported in blood. This blood is called deoxygenated blood which is transported from the right atrium to the right ventricle which then goes to the lungs. From here the CO2 is absorbed from the blood by the alveoli and then the rest of the blood is called oxygenated blood.

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    • Posted by Arman S 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 1 answers

    Twinkle . Jain 5 years, 1 month ago

    Magnetic field lines are imaginary lines along which north magnetic pole would move

    2Thank You

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    • Posted by Ainam Takuk 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 1 answers

    Aanya Jain 5 years, 1 month ago

    See the blue print of marks weightage

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    • Posted by Komal Gupta 5 years, 1 month ago

    CBSE > Class 10 > Science
    • 2 answers

    Aanya Jain 3 years, 3 months ago

    M - lead nitrate N- nitrogen dioxide

    1Thank You

    Sidharth Sidhu 5 years, 1 month ago

    M-Lead Nitrate Pb(NO3)2 N-Nitrogen dioxide NO2 2Pb(NO3)2(s)---heat----2Pbo(s)+4NO2(g)+O2

    1Thank You

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