Peripatus is a connecting link between:

1. Ctenophora and Plantyhelminthes

2. Mollusca and Echinodermata

3. Annelida and Arthropoda

4. Coelenterata and Poriphera

One of the important consequences of geographical isolation is:

1. no change in the isolated fauna

2. preventing speciation

3. speciation through reproductive isolation

4. random creation of new species

The finches of the Galapagos islands provide evidence in favour of:

1. special creation

2. evolution due to mutation

3. retrogressive evolution

4. biogeographical evolution

Which one of the following is not a living fossil?

1. King crab

2. Sphenodon

3. Archaeopteryx

4. Peripatus

Variations caused by mutation, as proposed by Hugo de Vries, are:
1. small and directionless
2. random and directional
3. random and directionless
4. small and directional

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

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

Match the hominids with their correct brain size:

Select the correct option.

For the stability of the organic compounds, Oparin opined that probably:
1. UV radiation never reached the surface of the primeval Earth

2. the primitive Earth was in a molten state

3. the primitive Earth atmosphere was reducing rather than oxidizing

4. plenty of energy sources were available for chemical reactions to occur