Which one of the following correctly describes the homologous structures?

1.	Organs with anatomical similarities, but performing different functions.
2.	Organs with anatomical dissimilarities, but performing same functions.
3.	Organs that have no functions now, but had an important function in ancestors.
4.	Organs appearing only in embryonic stage and disappearing later in the adult.

Which one of the following phenomena supports Darwin’s concept of natural selection in organic evolution?   

When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed  
1. Convergent evolution
2. Divergent evolution
3. Microevolution
4. Co-evolution 

Analogous structures are result of  
1. Divergent evolution
2. Convergent evolution
3. Shared evolution
4. Stabilizing selection 

The set of all genes, or genetic information, in a unit of evolution is called the :
1. genotype
2. polymorphism
3. multiple allelism
4. gene pool

Though we cannot be certain, what can be the probable reason/s for the sudden disappearance of dinosaurs from the Earth? 

Two mya, Australopithecines probably lived in:
1. Western Africa
2. Eastern African grasslands
3. South America
4. South East Asia

Which of the following will not counter natural selection?
1. genetic drift
2. gene flow
3. mutation
4. Unlimited resources

The cranial capacity of Homo erectus was around:
1. 450 cc
2. 700 cc
3. 900 cc
4. 1000 cc

Around 200 mya, some land reptiles went back to the water to evolve into fish-like reptiles, for example: