"Food offer many examples of Iong distance cultural exchange." Justify this statement.

In reproduction, DNA passes from one generation to the next. Copying of a DNA takes place with consistency but with minor variations. This consistency leads to stability of species.

(i) False As 3 ∈ {2, 3, 4, 5}, 3 ∈ {3, 6} ⇒ {2, 3, 4, 5} ∩ {3, 6} = {3}  (ii) False As a ∈ {a, e, i,...

It is due to high polarising power of Be cation its compound are covalent in nature

Solution: True. Justification: At least one out of every three consecutive positive integers is divisible by 2. Therefore, The product of three consecutive positive integers is divisible by 2. At least one out of every...

Personality, “Personality is that qualiting which permits a prediction of what a person will do in a given situation”.  * Personality of an individual consists of four dimensions such as physical,...

Nervous and hormonal system together perform the function of control and coordination in human beings. Let us take an example, in the case of any emergency, stimulus is being perceived by CNS...

Different forms of organisms have evolved during the course of evolution. Classification deals with grouping of these organisms into groups and subgroups based on their similarities and differences. The more...

Preserved traces of living organisms are called fossils. Two ways of determining age of fossils are: (i) Relative-fossils closer to the surface are more recent. (ii) Dating-finding the ratio of different isotopes of...

Yes, it is possible that a trait is inherited but may not be expressed. For example, when pure tall pea plants are crossed with pure dwarf pea plants, only tall pea...

(i) False If P = {m, n} and Q = {n, m}, then P × Q = {(m, m), (m, n), (n, m), (n, n)} (ii) True (iii) True