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Glochidium larva is found in (1) Pola (2) Unio (3) Sepia (4) Asterias

Answer: (2) The glochidium or plural glochidia is a microscopic larval stage of some freshwater mussels, aquatic bivalve molluscs in the families... View Article

Potato is a stem and sweet potato is a root justify the statement

Answer: Sweet potato is a modified food storage root, of fibrous roots. Potato is a stem that developed on the underground stems which are... View Article

What do we get from cereals pulses, fruits and vegetables?

Answer: The things that we receive from cereals, pulses, fruits and vegetables are explained below. Cereal crops - Wheat, Maize, Rice,... View Article

First transgenic plant was tobacco and it contain resistant gene for (1) Insect resistance (2) Herbicide resistance (3) Pest resistance (4) Frost resistance

Answer: (2) The first genetically modified plant, an antibiotic-resistant tobacco plant, was developed in 1982. The first field trials took... View Article

What conclusion was drawn from red drop and enhancement experiments in the light reaction of photosynthesis (1) Two photosystems are present (2) One photosystem is present (3) Two photosystems are present which work at different wavelengths (4) Two photosystems are present which work at some wavelength

Answer: (3) The light reaction is the process of photosynthesis that converts energy from the sun into chemical energy in the form of NADPH and... View Article

Triple antigen DPT is a (1) Vaccine against malaria, typhoid and cancer (2) Vaccine of mixture of viruses that causes tetanus, diphtheria and typhoid (3) Vaccine against polio, rabies and hepatites (4) Vaccine against diphtheria, pertussis and tetanus

Answer: (4) The DPT vaccine provides protection against diphtheria, pertussis is also known as whooping cough, and tetanus common name is... View Article

Scypha (Sycon) belongs to (1) Calcarea (2) Hexactinellide (3) Demospongiae (4) Hyalospongiae

Answer: (1) Sycon or Scypha is a typical tiny, colonial sponge. Sycon is a common marine sponge. They're sedentary. It is attached to shells,... View Article

What is latent heat of vaporization?

Answer: Latent heat is defined as the heat or energy that is absorbed or released during a phase change of a substance. It could either be from... View Article

What are the sub stages prophase 1 of Meiosis 1? Explain briefly

Answer: Meiosis is the type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell.... View Article

The alloy bronze contains copper and tin. This is a (1) Homogeneous mixture (3) Heterogeneous mixture (3) Solid solution of two immiscible metals (4) Pure substance

Answer: (1) Bronze is an alloy which mainly contains Copper (Cu) as a primary component along with Tin (Sn), other than these two elements bronze... View Article

What is a biopatent? Give any two examples.

Answer: Bio-patent applies to patents obtained by individuals or groups or country in order to gain exclusive rights over the origins of an... View Article

Write two examples of plants with climbing roots.

Answer: Climbing roots are the adventitious roots that arise from the nodes or internodes in plants having weak stems. These roots help the... View Article

State an example of gas in solid solution.

Answer: Solutions in which solvent is present is gaseous state are called Gasesous solution. Gaseous solutions can be divided into following... View Article

Prove that squar root of 5 is irrational and hence prove that (2− squar root of 5) is also irrational.

Answer: Let us assume to the contrary that √5 is a rational number. It can be expressed in the form of p/q where p and q are co-primes and q≠... View Article

Explain Schottky defect and Frenkel defect.

Answer: Schottky defect Schottky defect or small shot effect is named after a popular German physicist Walter H. In his model, he explains that... View Article

What is botanical name of potato and tomato?

Solanum tuberosum and Solanum lycopersicum Solanum truncatum and Solanum lycocarpum Solanum lycopersicum and Solanum tuberosum None of... View Article

A non-striated muscle is also called as (1) CArdiac muscle (2) Skeletal muscle (3) Voluntary muscle (4) Involuntary muscle

Answer: (4) Muscular tissue is a specialized tissue in animals which applies forces to different parts of the body by contraction. It is made up... View Article

What is the action of heat onk2cr2o7?

Answer: Potassium dichromate decomposes when heated very strongly with the evolution of oxygen. First, it melts at 398 ° C on further... View Article

Sodium carbonate can be manufactured by Solvay’s process but potassium carbonate cannot be prepared because : (1) K2CO3 is more soluble (2) K2CO3 is less soluble (3) KHCO3 is more soluble than NaHCO3 (4) KHCO3 is less soluble than NaHCO3

Answer: (c) Solvey method can not prepare potassium carbonate since it is relatively soluble in water, unlike sodium carbonate potassium... View Article

The LSA (lateral surface area) of a cube of side 1 cm is (1) 16cm^3 (2) 4cm^3 (3) 2cm^3 (4) 1cm^3

Answer: (2) Cube: A cube is a three-dimensional shape which is defined XYZ plane. It has six faces, eight vertices and twelve edges. All the... View Article

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