Evolution Questions

In a species, the weight of newborn ranges from 2 to 5kg. 97% of the newborn with an average weight between 3 to 3.3kg survive whereas 99% of the infants born with weight from 2 to 2.5kg or 4.5 to 5kg die. Which type of selection process is taking place?

Match the hominids with their correct brain size:
(a) Homo habilis (i) 900cc
(b) Homo neanderthalensis (ii) 1350cc
(c) Homo erectus (iii) 650−800cc
(d) Homo sapiens (iv) 1400cc

Variations caused by mutation, as proposed by Hugo de Vries are:

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:

Which of the following statements is correct about the origin and evolution of men?

In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as:

A population of a species invades a new area. Which of the following condition will lead to adaptive radiation?