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Yogita Ingle 5 years, 7 months ago
The mode of nutrition in Amoeba is holozoic and various steps involved in the process of nutrition are:
- Ingestion: Amoeba ingests food with the help of its finger-like extensions, called pseudopodia, when a food particle approaches Amoeba it forms pseudopodia around it and forms a food vacuole inside the Amoeba
- Digestion: Various enzymes from the cytoplasm enter into the food vacuole and break them down into simple soluble molecules
- Absorption: The simple soluble food is absorbed by cytoplasm of Amoeba from food vacuoles through the process of diffusion
- Assimilation: Amoeba cell obtains energy from the absorbed food through respiration and this energy is utilized by Amoeba for its growth and repair of the body
- Egestion: When a considerable amount of undigested food gets collected inside Amoeba, its cell membrane ruptures and throws out the undigested food.
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Meghna Thapar 5 years, 6 months ago
According to the New Cartesian Sign Convention, the pole (P) of the mirror is taken as the origin. The principal axis of the mirror is taken as the x-axis (X’X) of the coordinate system. The conventions are as follows:
(i) The object is always placed to the left of the mirror. This implies that the light from the object falls on the mirror from the left-hand side.
(ii) All distances parallel to the principal axis are measured from the pole of the mirror.
(iii) All the distances measured to the right of the origin (along + x-axis) are taken as positive while those measured to the left of the origin (along – x-axis) are taken as negative.
(iv) Distances measured perpendicular to and above the principal axis (along + y-axis) are taken as positive.
(v) Distances measured perpendicular to and below the principal axis (along –y-axis) are taken as negative.
Posted by Priya Behera 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Electrovalent bond is also called as ionic bond
In ionic bonding, electrons are completely transferred from one atom to another. In the process of either losing or gaining negatively charged electrons, the reacting atoms form ions. The oppositely charged ions are attracted to each other by electrostatic forces, which are the basis of the ionic bond.
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Meghna Thapar 5 years, 6 months ago
There different forms of Resources which include land, water, human, wealth and more available in the world. They are all distributed unevenly across the states, countries and the world. All social and economic problems caused by an unfair distribution of wealth. Poverty, hunger, homelessness, illiteracy, preventable disease, polluted air and water, and most of the other ills that beset humanity have the same root cause: the inequitable distribution of the planet's wealth and resources.
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Yogita Ingle 5 years, 7 months ago
Here 225 > 135 we always divide greater number with smaller one.
Divide 225 by 135 we get 1 quotient and 90 as remainder so that
225= 135*1 + 90
Divide 135 by 90 we get 1 quotient and 45 as remainder so that
135= 90*1 + 45
Divide 90 by 45 we get 2 quotient and no remainder so we can write it as
90 = 2*45+ 0
As there are no remainder so deviser 45 is our HCF
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Meghna Thapar 5 years, 6 months ago
As per Article 343 of the Constitution of India, India's official languages shall be Standard Hindi (the dialect known as khadi boli) written in the Devanagari script, and English. However, India does not have a national language. There is a difference between a national language and an official language. The reason for not having a national language is our diverse population.
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Technical and economic development have led to more consumption of resources in the following ways:
- It provides equipments which increases production that lead to the consumption of more resources. Introduction of sophisticated machinery further helps in exploitation of resources.
- The economic development leads to the rise of the needs of people which results into more consumption of resources.
- Economic development provides favourable environment for the development of latest technologies which helps to convert various materials into resources.
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Yogita Ingle 5 years, 7 months ago
The following steps are taken to control the soil erosion in hilly areas :
(i) Contour ploughing : which refers to ploughing along contour lines.
(ii) Terrace farming : construction of steps along the hilly areas by cutting the rock layers to reduce the flow of rivers.
(iii) Plugging of gullies to prevent gully erosion.
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Yogita Ingle 5 years, 7 months ago
1) Increased the feelings of alienation among the Sri lankan tamils
2) relations between the Sinhalas and tamil community strained over time.
3) Tamils launched parties and struggle, formed political organisations demanding independent tamil Eelam.
4)The relationship between the two communities turned in to a widespread conflict, soon turned into a civil war.
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Yogita Ingle 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
In four chambered heart , left half is completely separated from right half by septa. This prevents oxygenated and deoxygenated blood from mixing. This allows a highly efficient supply of oxygenated blood to all parts of the body. This is useful in animals that have high energy needs, such as birds and mammals .
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