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  • 3 answers

Harshita Dhariwal 5 years, 1 month ago (7096585)

It is the study of how society uses its limited resources...

Mamta ... 5 years, 2 months ago (9898848)

the state of a country or region in terms of the production and consumption of goods and services and the supply of money.

Yogita Ingle 5 years, 2 months ago (2577571)

Economics is a science that studies human behavior which aims at allocation of scarce resources in such a way that consumer can maximise their satisfaction, producers can maximise their profits and society can maximise its social welfare. It is about making choice in the presence of scarcity.

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  • 4 answers

Kartik Gupta 5 years, 2 months ago (9935469)

Lamina

Sneha ** 5 years, 2 months ago (9949633)

Answer will be lamina

Subhanita Sen 5 years, 2 months ago (9745578)

Lamina

Shweta Pandey 5 years, 2 months ago (9543030)

Key word
  • 1 answers

Yogita Ingle 5 years, 2 months ago (2577571)

ARTERIES VEINS
Functions
Involved in carrying pure, oxygenated blood and nutrient-rich blood. Involved in carrying impure, deoxygenated blood
Walls
Consists of three distinct layers, which are rigid, thicker and highly muscular. Consists of three distinct layers, which are thin and collapsible.
Position
Located deep within the body. Peripherally located closer to the skin.
  • 1 answers

Yogita Ingle 5 years, 2 months ago (2577571)

ARTERIES VEINS
Functions
Involved in carrying pure, oxygenated blood and nutrient-rich blood. Involved in carrying impure, deoxygenated blood
Walls
Consists of three distinct layers, which are rigid, thicker and highly muscular. Consists of three distinct layers, which are thin and collapsible.
Position
Located deep within the body. Peripherally located closer to the skin.
  • 1 answers

Meghna Thapar 5 years, 1 month ago (6237)

Arteries  Vein
 They carry oxygenated blood (blood that carries a large amount of oxygen) rich in nutrients.  They carry deoxygenated blood (blood that carries a large amount of carbon dioxide) rich in waste materials.
 They carry blood from the heart to the different parts of the body.  They carry blood from the different parts of the body to the heart.
 They have thick muscular walls and narrower lumen.  They have thinner walls and lumen is not narrow.
  • 2 answers

Yogita Ingle 5 years, 2 months ago (2577571)

Amoeba shows the holozoic nutrition. It means that the Amoeba consumes the whole food through the endocytosis and digests the food inside the cell within the food vacuole. The digestion process can be describes as :

1. Ingestion- Amoeba moves towards the food by making pseudopodia. The pseudopodia surround the food particle and fuse to form the food vacuole, which is then taken inside the cytoplasm. 

2. Digestion- The food vacuole is combined with lysosomes that contain the hydrolytic enzymes. These enzymes perform the breakdown of food particles.

3. Absorption- The digested food is then absorbed directly into the cytoplasm from where it will be distributed to the different organelles.

4. Assimilation- The absorbed food is used for the generation of energy. The excess amount is stored in the form of glycogen and lipids in the cytoplasm.

5. Excretion- The undigested food in the food vacuole is excreted out of the cell as the food vacuole fuses with the cell membrane and perform exocytosis.

Mamta ... 5 years, 2 months ago (9898848)

food vacuole
  • 1 answers

Yogita Ingle 5 years, 2 months ago (2577571)

Amoeba shows the holozoic nutrition. It means that the Amoeba consumes the whole food through the endocytosis and digests the food inside the cell within the food vacuole. The digestion process can be describes as :

1. Ingestion- Amoeba moves towards the food by making pseudopodia. The pseudopodia surround the food particle and fuse to form the food vacuole, which is then taken inside the cytoplasm. 

2. Digestion- The food vacuole is combined with lysosomes that contain the hydrolytic enzymes. These enzymes perform the breakdown of food particles.

3. Absorption- The digested food is then absorbed directly into the cytoplasm from where it will be distributed to the different organelles.

4. Assimilation- The absorbed food is used for the generation of energy. The excess amount is stored in the form of glycogen and lipids in the cytoplasm.

5. Excretion- The undigested food in the food vacuole is excreted out of the cell as the food vacuole fuses with the cell membrane and perform exocytosis.

  • 1 answers

Mamta ... 5 years, 2 months ago (9898848)

Digestion: The food is digested in the food vacuole with the help of enzymes. Absorption: It is then absorbed in the cytoplasm of the Amoeba by diffusion. Assimilation: The absorbed food provides energy and a part of nutrition is used for growth. Egestion: The undigested and the waste food particles are thrown out.
  • 2 answers

Mamta ... 5 years, 2 months ago (9898848)

The purpose of blackening the interior of a solar cooker is that the black surface absorbs more heat radiations of incident solar energy (about 98%) as compare to white or other light coloured surface.

Arpit Kumar 5 years, 2 months ago (9961905)

To absorb sunlight
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Palak Singh 5 years, 2 months ago (9211693)

The practice or science of collecting and analysing numerical data in large quantities, especially for the purpose of inferring proportions in a whole from those in a representative sample is known as statistics. It helps in formation of policies for economic development because it assess the amount of various resource available in the economy.
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Prisha Soun 5 years, 2 months ago (4711666)

Khud jar le be
  • 2 answers

King Adithya H M... 5 years, 2 months ago (9827241)

Salt was seen by Mahatma Gandhi as a powerful symbol that could unite masses. ... Hereby, Gandhi chose to break the salt law peacefully and show resistance to British rule. This instigated the Civil disobedience movement and the salt march to Dandi.

King Adithya H M... 5 years, 2 months ago (9827241)

Gandhi had made certain demands on behalf of the whole of the Indian National Congress to the British Government. When these demands were not fulfilled, the Civil Disobedience Movement was launched in 1930. ... The movement began with Gandhi's march from Sabarmati to the coastal town of Dandi in Gujarat.
  • 2 answers

Arpit Kumar 5 years, 2 months ago (9961905)

Arteries are thick where as veins are thin

King Adithya H M... 5 years, 2 months ago (9827241)

STRUCTURE OF ARTERIES AND VEINS Arteries carry blood away from the heart, and veins carry blood toward the heart, but that is not the only difference. Arteries and veins differ in their structure as well. If an artery is compared to a coresponding vein the size of the artery would be smaller, its lumen would be smaller, the wall would be thicker. The inner lining of an artery is typically wrinkled due to the contracted state of the smooth muscle in the artery wall. Veins have a relatively thin layer of smooth muscle in the wall, and often the veins have a misshapen or collapsed look, whereas arteries maintain a tight cylindrical shape.  Veins also have valve flaps to keep the blood from moving backward in the vessel. These valves resemble the semilunar valves of the heart.    Arteries and veins are similar in that the layers which form the walls are similar in composition. The innermost layer is the tunica intima. The tunica intima consists of an epithelial lining of simple squamous cells (endothelium), a basal lamina, and some supporting connective tissue. In arteries there is an internal elastic membrane where the tunica intima layer meets the tunica media layer. The tunica media is comprised mostly of smooth muscle. In large arteries the tunica media has an abundance of elastic fibers in addition to the smooth muscle. In small veins and capillaries the tunica media is absent. The third and outermost layer of a vessel is the tunica adventitia. This layer is made of connective tissues, which, in turn, form a loose attachment to surrounding tissues. The tunica adventitia is relatively thick in larger veins and may contain a considerable amount of elastic fiber.                                     STUDY TOPICS IN SEQUENCE Introduction to the Circulatory System The Human Heart Major Systemic Vessels Arteries and Veins Heart Development Vertebrate Hearts Things To Know List
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Yogita Ingle 5 years, 2 months ago (2577571)

Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . All cells have cell membranes, and the membranes are flexible. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls

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Meghna Thapar 5 years, 1 month ago (6237)

In a positional numeral system, the radix or base is the number of unique digits, including the digit zero, used to represent numbers. For example, for the decimal/denary system (the most common system in use today) the radix (base number) is ten, because it uses the ten digits from 0 through 9. The positional decimal system is presently universally used in human writing. The base 1000 is also used (albeit not universally), by grouping the digits and considering a sequence of three decimal digits as a single digit.

  • 3 answers

☀️ Sunshine ☀️ 5 years, 2 months ago (9274899)

Physical fitness is the ability of a person to do daily routine work without fatigue.There are various components of physical fitness. Like- Strength,speed,and endurance. And these are also divided into various parts. I think this answer will be suitable for you.Thanks

Yuvika Sharma 5 years, 2 months ago (8901282)

The five components of physical fitness are cardiovascular endurance, muscular strength, muscular endurance, flexibility and body composition, according to Fit Day. There is unanimous agreement in the fitness community that these are the five components of physical fitness, though the definition of what level of fitness needs to be achieved is a personal one.

Yogita Ingle 5 years, 2 months ago (2577571)

The five components of physical fitness are cardiovascular endurance, muscular strength, muscular endurance, flexibility and body composition, according to Fit Day. There is unanimous agreement in the fitness community that these are the five components of physical fitness, though the definition of what level of fitness needs to be achieved is a personal one.

  • 1 answers

Parush Kumar 5 years, 2 months ago (9954343)

s is displacement hear so the dimensions formula of s is [L] We know that we can add and subtract only those quantity which have same unit so dimensions formula of ut and 1/2at² is same Now u is initnial velocity it's dimensions formula is =[LT^-1] And t is time so =[T] ut dimensions formula is [L] The formula s=ut+1/2at² is dimensionally correct
  • 1 answers

Sneha ** 5 years, 2 months ago (9949633)

If we give support to money plant so they can stand upright at the support
  • 4 answers

Baldev Otaal 5 years, 1 month ago (8730800)

2000 + 200 + 30 + 5

Arya Rai 5 years, 2 months ago (4639178)

2000 + 200 + 30 + 5

Rupa Kumari 5 years, 2 months ago (9921049)

2000+200+30+5

Vanshika Kumari 5 years, 2 months ago (9582066)

2o,oo+2,00+30+5
  • 4 answers

Sashwati Lahkar 5 years, 1 month ago (8518536)

No

Kartik Gupta 5 years, 2 months ago (9935469)

No

Rupa Kumari 5 years, 1 month ago (9921049)

Yes

Vanshika Kumari 5 years, 2 months ago (9582066)

No
  • 2 answers

Mamta ... 5 years, 2 months ago (9898848)

Work :- W = F × d........... Energy :- P.E. = mgh............. Power :- P = W/t

Gravit Kulhari 5 years, 2 months ago (10695325)

What is the formula for energy, work and power

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