For origin of life, which of the following is not a precondition, needed to be fullfilled by the protobionts under consideration ?
1. They should have been able to totally isolate themselve from the general environment
2. They should have been able to replicate
3. They should have acquired a perpetual source of energy 
4. Their replication should have been subject to error via mutation

Adenine was synthesized by Orgel, using the Miller apparatus, when he used the gas:

1. carbon dioxide

2. hydrogen cyanide

3. hydrogen sulfide

4. nitrogen

Which of the following organisms alive today is likely to be most similar to the first life forms that evolved on the earth?

1. Methane producing bacteria

2. Cyanobacteria

3. Unicellular algae

4. Diatoms

What provides new alleles and therefore underlies all other mechanisms that produce variation ?

1. Speciation 
2. Mutation 
3. Recombination 
4. Natural selection 

Which of the following is the most important precondition for speciation to occur?

(a) Reproductive isolation

(b) A crash of the population size

(c) Adaptive radiation

(d) Random mating

The similarities between the eyes of an octopus and of a mammal are a result of:

1. Convergent evolution

2. Divergent evolution

3. Saltation

4. Retrograde evolution

Which of the following would lead to deviation from Hardy-Weinberg equilibrium?

1. Random mating

2. Lack of mutations

3. No gene flow or gene migration

4. Natural selection

The now extinct reptile group that evolved into mammals was:

1. Therapsids

2. Dinosaurs

3. Thecodants

4. Sauropsids