The three basic life history traits do no not include:
1. Age-sex structure of the population
2. Age when reproduction begins
3. How often reproduction occurs
4. Number of offspring per reproductive episode

Consider the two statements:
I. The current, sixth, mass extinction is different from the previous five mass extinction events.
II. Extinctions have occurred at over 100 - 1000 times the background extinction rate since 1900.

1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. Only I is correct
4. Both I and II are incorrect

The change in allele frequencies that occurs over time within a population is called as:
1. microevolution, or adaptive evolution
2. macroevolution, or speciation
3. coevolution
4. phylogenetic evolution

In sympatric speciation, reproductive isolation:
1. develops without a geographic barrier
2. develops due to a geographic barrier
3. is due to a change in chromosome number
4. does not lead to development of a barrier to mating

The term “Homologous “ to mean the organs of different species that are related to each other through common descent, although now functionally different, was coined by :
1. Richard Owen
2. Erasmus Darwin
3. Ernst Haeckel
4. John Ray

Lamarck has been criticized mainly on his tenet of:
1. inheritance of acquired characters
2. use and disuse of organs
3. key role played by environment in evolution
4. vital force in the body

U²³⁸, the radioactive isotope of uranium, is very useful in absolute dating of rocks. It’s half life is about:
1. 4500 years
2. 4.5 million years
3. 45 million years
4. 4.6 billion years

Both Charles Darwin and A.R.Wallace were influenced by the:
1. writings of J.B.S.Haldane on the origin of life
2. findings of Urey and Miller experiments
3. findings on the Galapagos Islands
4. essay on human population by T.R.Malthus

The genetic drift is also called as :
1. Sewall-wright effect
2. Hardy-Weinberg equilibrium
3. Balanced polymorphism
4. Gene flow

Population that experience genetic drift most commonly are:
1. isolated
2. small in number
3. mobile
4. closely adapted to their environment