Q. No.The phenomenon of the evolution of different species in a given geographical area starting from a point and spreading to other habitats is called:
1.
Saltation
2.
Co-evolution
3.
Natural selection
4.
Adaptive radiation
A Hominid fossil discovered in Java in 1891, now extinct, having a cranial capacity of about 900 cc was:
| 1. | Homo erectus | 2. | Neanderthal man |
| 3. | Homo sapiens | 4. | Australopithecus |
After about how many years of the formation of the earth, life appeared on this planet?
1. 500 billion years
2. 50 million years
3. 500 million years
4. 50 billion years
Embryological support for evolution was proposed by:
| 1. | Ernst Heckel | 2. | Karl Ernst von Baer |
| 3. | Charles Darwin | 4. | Alfred Wallace |
Which of the following statements is correct about the origin and evolution of men?
| 1. | Agriculture came around 50,000 years back. |
| 2. | The Dryopithecus and Ramapithecus primates existing 15 million years ago, walked like men. |
| 3. | Homo habilis probably ate meat. |
| 4. | Neanderthal men lived in Asia between 100000 and 40000 years back. |
A population of a species invades a new area. Which of the following condition will lead to adaptive radiation?
| 1. | Area with a large number of habitats having very low food supply |
| 2. | Area with a single type of vacant habitat |
| 3. | Area with many types of vacant habitats |
| 4. | Area with many habitats occupied by a large number of species |
In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as:
| 1. | Adaptive Radiation | 2. | Divergent Evolution |
| 3. | Cyclical Evolution | 4. | Convergent Evolution |
Match the hominids with their correct brain size:
| Column I | Column II | ||
| (a) | Homo habilis | (i) | 900 cc |
| (b) | Homo neanderthalensis | (ii) | 1350 cc |
| (c) | Homo erectus | (iii) | 650-800 cc |
| (d) | Homo sapiens | (iv) | 1400 cc |
Select the correct option.
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (iii) | (i) | (ii) |
| 2. | (iv) | (i) | (iv) | (ii) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (iii) | (iv) | (i) | (ii) |
In a species, the weight of a newborn ranges from 2 to 5 kg. 97% of the newborns with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 kg to 5 kg die. Which type of selection process is taking place?
1. Cyclical selection
2. Directional selection
3. Stabilizing selection
4. Disruptive selection
Variations caused by mutation, as proposed by Hugo de Vries, are:
1. small and directionless
2. random and directional
3. random and directionless
4. small and directional
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