Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Eduncle Best Answer
Cope’s rule states that animal population lineages tend to increase in body size over evolutionary time.
Dollo’s law of irreversibility, states that “an organism never returns exactly to a former state, even if it finds itself placed in conditions of existence identical to those in which it has previously lived ... it always keeps some trace of the intermediate stages through which it has passed.
Van Valen’s law states that the probability of extinction for species and higher taxa (such as families and orders) is constant for each group over time; groups grow neither more resistant nor more vulnerable to extinction, however old their lineage is.
Occam’s razor (or Ockham’s razor) is a principle from philosophy and science. Suppose there exist two explanations for an occurrence. In this case the simpler one is usually better-also called the Principle of Parsimony.