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What is the difference between saprophytic and parasitic nutrition?

Answer: Parasite and saprotrophic nutrition refer to the heterotrophic mode of nutrition. Parasitic nutrition Saprotrophic nutrition... View Article

Algae have cell wall made up of (1) Cellulose, hemicellulose and pectins (2) Cellulose, galactans and mannans (3) Hemicellulose, pectins and proteins (4) Pectins, cellulose and proteins

Answer: (2) Cellulose, galactans and mannans Alga is a term that describes a large and incredibly diverse group of eukaryotic, photosynthetic... View Article

An epigynous flower is characterized by (1) Inferior ovary (2) Superior ovary (3) Oblique overy (4) Half superior and half inferior overy

Answer: (1) In epigynous flowers, the ovary is inferior to the other three parts. Here, the thalamus encloses the ovary inside it and the other... View Article

What does the filiform apparatus do at the entrance into or Function of filiform apparatus is to (1) It helps in the entry of pollen tube into a synergid (2) It prevents entry of more than one poller tube into the embryo sac (3) It brings obout opening of the pollen tube (4) It guides pollen tube from a synergid to egg

Answer: (1) Filiform system assists in entering a pollen tube into an ovule synergy. The filiform device is a finger-like projection consisting... View Article

Bacillus ramosus and Bacillus vulgaris are examples of (1) Ammonifying bacteria (2) Nitrate bacteria (3) Nitrite bacteria (4) Symbiotic bacteria.

Answer: (1)Ammonifying bacteria Bacteria are microscopic, single-celled organisms that live in large numbers in a variety of environments, both... View Article

What are bulliform cells?what are their functions?

Answer: Bulliform cells or motor cells are large, bubble-shaped epidermal cell that occurs in groups of several monocots on the upper surface... View Article

Convert the following rupees into paise :Rs 90

Answer: Rupees 90 We need to convert rupees 90 into paise We know that 1 Rupee =100 paise So 90 Rupees can be converted in paise by... View Article

Saheli, a female antifertility pill is used (1) Daily (2) Weekly (3) Quarterly (4) Monthly

Answer: (2) Saheli established at Lucknow at Central Drug Research Institute. For a female, it's a new oral contraceptive pill. It contains a... View Article

AssertionSound waves do not travel through vacuumReasonSound waves are mechanical waves which require a medium for their propogation (1) Both assertion and reason are correct and the reason is the correct explanation asseration (2) Both assertion and reason are correct but the reason is not the correct explanation asseration (3) Asseration is correct but reason is not correct (4) Both asseration and reason are incorrect

Answer: Sound waves are mechanical waves. In comparison to electromagnetic waves, they involve a propagating medium. The velocity of the sound... View Article

Define the terms monoecious and dioecious with respect to sexuality in plant mentioning examples for each.

Answer: The terms monoecious and dioecious are used to describe plant sexual reproduction. Plants that have both female and male sexual organs... View Article

The hybridization of carbon in diamond, graphite and acetylene is respectively: (1) sp3. sp, sp2 (2) sp, sp2, sp3 (3) sp3, sp2, sp (4) sp2, sp3, sp

Answer: (3) sp3, sp2, sp Diamond and Graphite, both are known as the allotropes of carbon. All the carbon atoms of Diamond are said to possess... View Article

What is the mass of one molecule of oxygen?

Answer: The molecular mass of an element is defined as the sum of the masses of the elements present in the molecule. Molecular mass is obtained... View Article

German silver is an alloy of (1) Fe, Cr, Ni (2) Ag, Cu, Au (3) Cu, Zn, Ni (4) Cu, Zn, Sn

An alloy is a substance formed from the combination of two or more metals. Alloys can also be formed from combinations of metals and other... View Article

Find the center of mass of uniform semicircular ring of radius R and mass M

Answer: We are taking a half ring, which has a uniformly distributed mass with a radius of R. The centre of mass of the ring will lie on the... View Article

What are the consequences of deforestation?

Answer: Deforestation can be defined as the large-scale removal of trees from forests (or other lands) for the facilitation of human... View Article

A lens is used to correct myopia and a lens is used to correct hypermetropia. (1) Concave, concave (2) Convex, convex (3) Convex, concave (4) Concave, convex

Answer: (4) Myopia or Nearsightedness occurs when the eye loses its ability to focus on far-off objects as the lenses do not possess a long... View Article

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