Why is it not advisable to separate two species on the basis of gross morphology alone? What other criteria should be taken into consideration ?

What criteria should one use in categorising a species as threatened ?

A wire of length 28 m is to be cut into two pieces. One of the pieces is to be made into a square and the other into a circle. What should be the length of the two pieces so that the combined area of the square and the circle is minimum?

A wire of length 36m is to be cut into two pieces. One of the pieces is to be made into a square and the other into a circle. What should be the lengths of the two pieces, so that the combined area of the square and the circle is minimum?

A wire of length 36m is to be cut into two pieces. One of the pieces is to be made into a square and the other into a circle. What should be the lengths of the two pieces, so that the combined area of the square and the circle is minimum?

Two kingdom classification system used for a long time was inadequate, so a need was felt for including besides gross morphology, other characteristics also. What were these characters which resulted in formation of five kingdom classification system ? (a) Cell structure (b) Mode of nutrition (c) Reproduction Evolutionary relationship

If vec aa n d vec b are the vectors determined by two adjacent sides of a regular hexagon, what are the vectors determined by the other sides taken in order?

Two transparent slabs having equal thickness but different refractive indices mu_1 and mu_2 , are pasted side by side to form a composite slab. This slab is placed just after the double slit in a Young's experiment so that the light from one slit goes through one material and the light from the other slit goes through the other material. What should be the minimum thickness of the slab so that there is a minimum at the point P_0 which is equidistant from the slits ?

Biospecies which are difficult to separate on the basis of morphological traits are (a) Linneons (b) Allopatric Species (c) Sibling species (d) Neontological Species

Two celestial bodies are separated by some distance. If the mass of any one of the bodies is doubled while the mass of other is halved then how far should they be taken so that the gravitational force between them becomes one-fourth ?

Two celestial bodies are separated by some distance. If the mass of any one of the bodies is doubled while the mass of other is halved then how far should they be taken so that the gravitational force between them becomes one-fourth ?