Q. No.The wings of an insect and the wings of a bird are examples of:
| 1. | analogous structures | 2. | homologous structures |
| 3. | vestigial structures | 4. | phylogenetic structures |
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Members belonging to the same biological species are potentially able to:
| 1. | compete with members of other species only |
| 2. | express all the same genes in all their cells |
| 3. | breed with members of other biological species |
| 4. | interbreed and produce fertile offspring |
The best evidence for tracing phylogeny amongst a group of organisms will be similarities in their:
| 1. | anatomy | 2. | DNA and Proteins |
| 3. | development | 4. | courtship behavior |
Identify the incorrect fact regarding the Neanderthal man:
1. Cranial capacity of around 1400 cc
2. Lived in East and Central Africa
3. Used hides to protect their bodies
4. Buried their dead
1. Cranial capacity of around 1400 cc
2. Lived in East and Central Africa
3. Used hides to protect their bodies
4. Buried their dead
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In which of the following groups of organisms is the sympatric speciation most likely to occur?
1. amphibians
2. arthropods
3. plants
4. birds
Flowering plants (angiosperms) first appeared during :
1. Paleozoic era
2. Carboniferous period
3. Cretaceous period
4. Cenozoic era
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Industrial melanism is an excellent example of ‘evolution in action’ where the selecting agent is:
| 1. | humans | 2. | toxins from smoke |
| 3. | birds | 4. | tree bark |
Species formation without branching of the evolutionary line of descent is called as:
1. anagenesis, or phyletic evolution
2. cladogenesis, or divergent evolution
3. convergent evolution
4. allopatry
The first mammals arose in the _____ period:
1. Carboniferous
2. Jurassic
3. Cretaceous
4. Triassic
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If there are two forms of a specific enzyme in a population, and if the relative frequencies of the individuals possessing each form of the enzyme changes, then certainly there is:
| 1. | mutation | 2. | genetic drift |
| 3. | gene migration | 4. | evolution |
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