Flame cells and Malpighian tubules are the analogous organ in
1.
insects and arthropods respectively
2.
arthropods and echinodermates respectively
3.
helminths and arthropods with other insect respectively
4.
arthropds and other insect with helminths respectively
Tendrils in plants are an exapmle of
1. Convergent evolution
2. Radiation
3. Divergent evolution
4. Co-evolution
Theory of 'Saltations' was given by
| 1. | G Mendel | 2. | Hugo de Vries |
| 3. | J B S Haldane | 4. | H J Miller |
The animal group which does not exist in Galapagos island is
| 1. | Insects | 2. | Protozoa |
| 3. | Crustacea | 4. | Amphibia |
Appearence of dark-coloured pepper moths among the light-coloured ones as a result of increased industrial pollution is an example of
| 1. | Disruptive selection |
| 2. | Stabilizing selection |
| 3. | Directional selection |
| 4. | None of the above |
Match the columns
|
|
Column I |
Column II | |
|
A.
B.
C. |
Hugo de Vries
Julian Huxley
Jean Baptiste |
1.
2.
3. |
Inheritance of acquired characters Multiplication of individual species in geographical proportion Mutation theory of evolution |
Codes:
A B C
(1) 1 2 3
(2) 2 3 1
(3) 3 1 2
(4) 3 2 1
Hardy-Weinberg's principle of 'zero evolution' is based on
| 1. | genetic equilibrium | 2. | random mating |
| 3. | no migrations | 4. | All of the above |
What does the term 'reproductive isolation' refers to?
| 1. | An individual is unable to fertilise itself |
| 2. | Genes are not exchanged between two populations |
| 3. | Individuals from two populations never mate |
| 4. | Individuals form two populations never produce offsprings |
Below are listed some pairs of characters. the homologous pair is
| 1. | forelimbs of dog and camel |
| 2. | insect wing and batwing |
| 3. | feathers of birds and fins of fish |
| 4. | lens of vertebrate and arthropod |
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