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Varun Banda 8 years, 2 months ago

a) Macroelements (Macronutrients or Major elements): Those element which are required in large quantities are called macronutrients.

b) Microelements (Micronutrients or Minor element or Trace element): Those element which are required in small quantities are called microelement or trace element.

Macronutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na) .

Micronutrients (or trace minerals): boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni). and cobalt (Co)

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Debjyoti Das 8 years, 2 months ago

I don't know
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Rahul Jat 8 years, 2 months ago

Columnar
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Varun Banda 8 years, 2 months ago

Collagen is the main structural protein in the extracellular space in the various connective tissues in animal bodies

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Abhinav Dahiya 8 years, 2 months ago

Plasma membrane allows the entry of some specific molecules which are insoluble in memb. with the help of intrinsic proteins which are recognized by the cell and those which are soluble in lipid part of memb. can pass directly into the cell through diffusion . So , it is semi-permeable memb.
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Varun Banda 8 years, 2 months ago

A flower may be radially symmetrical, as in roses and petunias, in which case it is termed regular or actinomorphic

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Varun Banda 8 years, 2 months ago

Monera are prokaryotic unicellular bacteria whose genetic material is dispersed loosely in the cell. On the other hand, the genetic material of plants and other eukaryotes is held in the cell nucleus. Therefore, blue green algae are placed in Kingdom Monera and not inKingdom Plantae.

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Priya Goswami 8 years, 2 months ago

Mainly DNA consist of Purines and pyrimides which are Adenine , guanine ,thymine and cytosisne whereas RNA contain Uracil in case of one and all same.
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Priya Goswami 8 years, 2 months ago

Bio mean nature and logy mean study
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Shradha Tamang 8 years, 2 months ago

The study of the internal structure of the body.
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Priya Goswami 8 years, 2 months ago

It simply mean to maintain water level

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