A location with luxuriant growth of lichens on the trees indicates that the:-
1. trees are very healthy
2. trees are heavily infested
3. location is highly polluted
4. location is not polluted
Among the human ancestors the brain size was more than 1000 cc in:
1. Homo neanderthalensis
2. Homo erectus
3. Ramapithecus
4. Homo habilis
The early-stage human embryo distinctly possesses
1. gills
2. gill slits
3. external ear (pinna)
4. eyebrows
In Miller's experiment, he used a mixture of CH4, NH3, H2 and water vapour in a closed flask to mimic early earth conditions. What was the temperature at which this flask was kept?
(a)
(b)
(c)
(d)
The correct sequence of stages in the evolution of modern man (Homo sapiens), is
(1) Homo erectus, Australopithecus, neanderthal man, cro-magnon man, modern man
(2) Australopithecus, Homo erectus, neanderthal man, cro-magnon man, modern man
(3) neanderthal man, Australopithecus, cro-magnon man, Homo erectus, modern man
(4) Australopithecus, neanderthal man, cro-magnon, Homo erectus, modern man
Theory of 'Saltations' was given by
(1) G Mendel
(2) Hugo de Vries
(3) J B S Haldane
(4) H J Miller
In Hardy- Weinberg equation, the frequency of heterozygous individual is represented by
(1) P2
(2) 2pq
(3) pq
(4) q2
Why does it is said that looking at stars on a clear night sky means looking back in time?
A. What we are seeing at that time is actually has stated its journey millions of years back
B. What we are seeing at that time is actually has stated its journey trillions of days back
C. What we are seeing at that time is actually has stated its journey thousands of days back
D. What we are seeing at that time is actually has stated its journey thousands of kilometers away
Which of the following statements are not true?
(1) The origin of life is considered a unique event in the history of universe.
(2) Earth is just a speck.
(3) Universe is almost 20 million years old
(4) Galaxies contain stars and clouds of gas and dust
Which of the following is not true about Big Bang theory?
(1) A singular huge explosion
(2) Universe expanded and temperature came down
(3) Hydrogen and Helium formed alongwith this expansion
(4) The gases condensed under gravitation and formed the galaxies of the present day universe.