Explore topic-wise InterviewSolutions in Current Affairs.

Explanation:

ong>Answer:

Vitamin E was first discovered by EVANS and Bishop in 1922, and it was initially denoted as an “anti-sterility factor X” that was necessary for reproduction.

Since then, vitamin E has been well CHARACTERIZED as a powerful lipid-soluble ANTIOXIDANT through extensive research.

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EXPLANATION:

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ong>Answer:

its a STRING INSTRUMENT maybe

Explanation:

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ong>Answer:

tracheae

Explanation:

The respiratory system consists of air-filled tubes or tracheae, which open at the surface of the THORAX and abdomen through paired spiracles. The muscular VALVES of the spiracles, closed most of the time, open only to allow the uptake of oxygen and the ESCAPE of CARBON DIOXIDE.

ong>ANSWER:

Gametogenesis is the production of gametes from HAPLOID precursor cells. ... During the process of gametogenesis, a germ cell undergoes meiosis to produce haploid cells that directly develop into gametes. HENCE, in ANIMALS, meiosis is an integral part of gametogenesis.

Explanation:

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ong>Answer:

7.(I)

8.(III)

EXPLANATION:

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PROPERTY Acid Base

Taste Sour (vinegar) Bitter (baking soda)

Smell Frequently burns nose Usually no smell (except NH3!)

Texture Sticky Slippery

Reactivity Frequently react with metals to form H2 React with MANY oils and fats.

An acid-base indicator is EITHER a weak acid or weak base that exhibits a color change as the concentration of hydrogen (H+) or hydroxide (OH-) IONS changes in an aqueous solution. Acid-base indicators are most often used in a titration to identify the endpoint of an acid-base reaction. They are also used to gauge pH values and for interesting color-change science demonstrations.

ong>ANSWER:

Asexual reproduction INVOLVES one parent and produces offspring that are genetically IDENTICAL to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.

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Explanation:

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ong>Answer:

spiracles

Explanation:

INSECTS have spiracles, that are OPENINGS on exoskeletons to allow air to ENTER the tracheae. These are connected to tracheal tubes that deliver OXYGEN DIRECTLY into the tissues of insects

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ong>Answer:

The SPECIES which exhibit a single estrus CYCLE are KNOWN as monstrous and species which COME into estrus twice or more are TERMED polyestrous.

Explanation:

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ong>Answer:

MEANING of biestrous: noisy, energetic, and cheerful.

Explanation:

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ong>Answer:

ASEXUAL REPRODUCTION involves ONE parent and PRODUCES offspring that are genetically IDENTICAL to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.

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ong>Answer:

4-5.3% of CARBON dioxide INHALED in AIR

ong>Answer:

Seasonal breeders are animal species that successfully MATE only during certain TIMES of the year. These times of year allow for the optimization of SURVIVAL of young due to factors such as ambient temperature, food and WATER availability, and changes in the predation behaviors of other species.

The respiratory organs of

birds are Lungs

0.1 MOLE ( approximately)

explanation

no. of MOLES of H2O molecule

GMW ( gram molecular weight

2 1

18 = 9 = 0.1(approximately)

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:.AVERAGE speed=100/10+90/10+120/20

=10+9+6

=25m/s

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ong>Answer:

option C is correct..

Explanation:

CARBON have low melting POINT and BOILING point..

ong>Bisexuality, in biology, the CONDITION of an organism CAPABLE of producing both male and female gametes (sex cells). In PLANTS and microorganisms, this is often REFERRED to as monoecism. In multicellular ANIMALS, bisexuality is usually called hermaphroditism (q.v.)...

Newton's LAW of UNIVERSAL gravitation states that any two bodies in the UNIVERSE attract each other with a force that is directly proportional to the product of their MASSES and inversely proportional to the square of the distance between them.

ong>Answer:

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e solutions are given:

• A = Acidic
• B = Basic
• C = Nuetral

How can we identify the type of SOLUTION?

There are two possible methods:

• By using some indicators like LITMUS paper, phenolphthalein, etc.
• By using Universal Indicators.

Method 1:

Litmus Paper:

Acidic:

⇒When red litmus paper is added in sample solution A, we can observe no colour change.

⇒When blue litmus paper is added in sample solution A, we can observe that the colour changes to red.

⇒From this, we can say that solution A is acidic.

• Red litmus solution: No colour change.

• Blue limus solution: Red

Basic:

⇒When red litmus paper is added in sample solution B, we can observe that the colour changes to blue.

⇒When blue litmus paper is added in sample solution B, we can observe no colour change.

⇒From this, we can say that solution B is basic.

• Red litmus solution: Blue

• Blue limus solution: No colour change.

Nuetral:

⇒When red and blue litmus paper is added in sample solution C, we can observe no colour change.

⇒From this, we can say that solution C is neutral.

Phenolphthalein:

Acidic:

⇒When Phenolphthalein is added in sample solution A, the solution becomes colourless.

From this, we can say that solution A is acidic.

Basic:

⇒When Phenolphthalein is added in sample solution B, then the colour of the solution becomes pink.

From this, we can say that solution B is basic.

Nuetral:

⇒ When Phenolphthalein is added in sample solution C, then the colour of the solution becomes colourless.

From this, we can say that solution C is neutral.

Like this the type of solution can be identified by using various indicators. By observing change in colour of the solution, we can identify whether the solution is acidic, basic or neutral in nature.

Method 2:

Universal indicators:

⇒From universal indicators, we can check the pH value of a solution.

⇒This method is more efficient because we can identify whether a solution is strongly acidic/basic or weakly acidic/basic in nature.

Know some pH values:

• Strong Acid = 0-3
• Weak Acid = More than 3 to LESS than 7
• Weak BASE = 7-10
• Strong Base = More than 10 and less than 14

ong>Answer:

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Explanation:

The PRINCIPLE of STANDARDIZATION of sodium thiosulphate is based on REDOX iodometric titration with potassium IODATE as primary standard. Potassium iodate a strong oxidizing agent is treated with excess potassium iodide in acidic media which liberates iodine which is back titrated with sodium thioslphate.

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>CHEMICAL change

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A fish breathes by taking WATER into its mouth and forcing it out through the gill passages. As water passes over the thin walls of the gills, dissolved OXYGEN moves into the blood and TRAVELS to the fish's cells.

The fish breathes by taking in water through its mouth and sending it over the gills. When water passes over the gills, the gills extract dissolved oxygen from the water. The extracted oxygen is absorbed by the blood and carried to all the parts of the fish.

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SACCHAROMYCES cereviceae is used for absorption of metal pollutant.

Note: This answer is from a website called science DIRECT

ong>Answer:

water HOLDING capacity is lowest in sandy soil.

→ this is the reason due to which sandy soil is the LEAST fertile soil.

main CROPS GROWN in sandy soil are - jowar , bazra ,etc..

in india. it is mainly found in - Rajasthan,

ong>ANSWER:

atomic CITY NAHI ATOMICITY hota hai

Explanation:

the number of atoms in the molecules of an element. this is called atomicity.

LACTOBACILLI is the CORRECT answer

" SANDY soil "

Is the answer

here is your answer

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If heat is exchanged between a hot and COLD object the TEMPERATURE of the cold object goes on increasing due to GAIN of energy and the temperature of the hot object goes on decreasing due to loss of energy. ... In this process the cold object gains heat energy and the hot object loses heat energy.

Explanation:

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ong>Answer:

Multiply the amount of the current by the amount of resistance in the circuit. The result of the multiplication will be the potential difference, measured in volts. This FORMULA is KNOWN as Ohm's LAW, V = IR.

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ong>Answer:

Amorphous carbon is free, reactive carbon that does not have any crystalline STRUCTURE. Amorphous carbon is often ABBREVIATED to AC for GENERAL amorphous carbon, aC:H or HAC for hydrogenated amorphous carbon, or to ta-C for tetrahedral amorphous carbon (ALSO called diamond-like carbon).

D

A-Photo-system II; B- e

−

ACCEPTOR; C-e

−

transport system; D- photo-system I; E- NADPH.

A. In the non-electron transport pathway, the light energy of specific WAVELENGTHS is absorbed by chlorophylls and accessory pigments of PS II. These pigments transfer their absorbed energy to PS II reaction centre- P

680

.

B. The reaction centre- P

680

becomes photoexcited and exudes an electron with a gain of energy. The electron is immediately accepted by the primary acceptor quinone.

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ong>ANSWER:

glass is MADE up of white marbles . it MELT in a utensil and it becomes glass

Explanation:

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Basics of image editing RASTER IMAGES are stored in a computer in the form of a grid of picture elements, or pixels. These pixels CONTAIN the image's color and brightness INFORMATION. Image editors can change the pixels to enhance the image in many ways.

MCB

Explanation:

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