1. | Thorn of Bougainvillea and tendrils of Cucurbita – Analogous organs |
2. | Nictitating membrane and blind spot in the human eye – vestigial organs |
3. | Nephridia of the earthworm and Malpighian tubules of cockroach - Excretory organs |
4. | Wings of a honey bee and wings of crow - Homologous organs |
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
The most recent and direct pre-historic ancestor is:
1. Cro-magnon
2. Neanderthal
3. Pre-neaderthal
4. None of these
Darwin’s finches represent:
1. Morphological variations
2. Geographical isolations
3. Climate variations
4. Reproductive isolation
Hardy-Weinberg equilibrium is known to be affected by gene flow, genetic drift, mutation, genetic recombination and:
1. evolution
2. limiting factors
3. saltation
4. natural selection
Which one of the following in birds indicates their reptilian ancestry?
1. | Scales on their heart |
2. | Four-chambered heart |
3. | Two special chambers crop and grizzlies in their digestive tract |
4. | Egg with a calcareous shell |
Darwinism explains all the following except:
1. Within each species, there is variation
2. Organisms tend to produce more offspring than can survive
3. Offspring with better traits that overcome competition are best suited for the environment
4. Variations are inherited from parents to offspring through genes
Theory of pangenesis was given by:
1. Darwin
2. Lamarck
3. Hugo de Vries
4. Oparin
Which of the following is not true for a species?
1. Members of a species interbreed
2. Variations occur among members of species
3. Each species is reproductively isolated from every other species
4. Gene flow does not occur between the populations of a species