The theory of spontaneous generation says that
1. Life originated from the decaying and rotting matter like straw , mud etc
2. Life came on the earth from outerspace
3. Life comes from pre-existing life only
4. Life started with the replication of self replicating metabolic capsules
Select the incorrect match with respect to placental mammals and Australian marsupials.
(1) Lemur : Spotted cuscus
(2) Bobcat : Tasmanian tiger
(3) Anteater : Numbat
(4) Koala : Flying squirrel
According to Hardy - weinberg principle, the frequency of homozygous recessive (aa) individuals in a population is denoted by
1.
2. 2pq
3.
4. p + q
Match column I and column II with respect to cranial capacity
Column I Column II
a. Homo erectus (i) 650 - 800 cc
b. Homo sapiens (ii) 1650 cc
c. Cro-Magnon man (iii) 1400 cc
d. Homo habilis (iv) 900 cc
Choose the correct option
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iii), c(iv), d(i)
3. a(iv), b(iii), c(ii), d(i)
4. a(iii), b(iv), c(i), d(ii)
Hardy-Weinberg equation is used to check
1. Size of population
2. Whether evolution is occuring in a population or not
3. Average lifespan of a population
4. Maximum life expectancy of a population
Adaptive radiation can be observed in all cases except
1. marsupial radiation
2. Variety of beaks in Darwin's finches
3. Placental diversification in North American
4. Wing structure of butterfly, bat and bird
The evolutionary process giving rise to new species
adapted to new habitats and ways of life is called
adaptive radiation. For example,
1. Darwin’s finches in Galapagos Islands.
2. Australian marsupials that radiated to form new
species.
3. Wolf and Tasmanian wolf.
4. Both (a) and (b)
During course of evolution, the land reptiles which went back into water to evolve into fish-like reptiles, about 200 mya would refer to
1. Icthyosaurs
2. Tyrannosaurus
3. Pelycosaur
4. Therapsid
Agriculture and human settlement started about
1. 75000 years ago
2. 18000 years ago
3. 10000 years ago
4. 1.5 mya
Mark the correct statement with respect to industrial melanism:
1. Lichens can be used as an industrial pollution indicator.
2. Low count of melanic moths are found in rural areas where industrialisation did not occur.
3. Neither grey nor the dark variety of moths has been completely wiped out.
4. All of these