Which of the following are homologous organs:

1. Wings of Birds & Locust

2. Wings of birds (Sparrow) & Pectoral fins of fish

3. Wings of Bat & Butterfly

4. Legs of frog & Cockroach

Genetic drift operates in:

1. Small isolated population

2. Large isolated population

3. Fast reproductive population

4. Slow reproductive population

There is no life on the moon due to the absence of:

1. O₂

2. Water

3. Light

4. Temperature

According to fossils that have been discovered till now, the origin and evolution of man started from which country?

1. France

2. Java

3. Africa

4. China

In which condition, the gene ratio remains constant for any species?

1. Sexual selection

2. Random mating

3. Mutation

4. Gene flow

The sequence of which of the following is used to know the phylogeny?

What is true for individuals of the same species:

1. Live in the same niche

2. Live in the same habitat

3. Interbreeding

4. Live in different habitat

In which era reptiles were dominated:

1. Coenozoic era

2. Mesozoic era

3. Paleozoic era

4. Archaeozoic era

Convergent evolution is illustrated by:

1. Rat and dog

2. Bacterium and protozoan

3. Starfish and cuttlefish

4. Dogfish and whale

Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?