Lamarck's evolution theory could be summarised by the statement that
only the fittest can survive in a challenging environment
species that are unable to adapt become extinct
new characteristics do not arise in organisms in time of need
the changing environment imposes structural physiological and behavioural changes in organisms
in a changing and unstable environment nature rejects the weak
Correct answer is D
No explanation has been provided for this answer.
The swarming especially at the beginning of the rainy season is a courtship behaviour shown by
migratory birds
pigeons
crickets
winged termites
bees
Correct answer is D
No explanation has been provided for this answer.
The changing of colour by a chameleon to that of the environment is an example of
adaptive radiation
protective coloration
courtship display
display of body colour
territorial behaviour
Correct answer is B
No explanation has been provided for this answer.
Which of the following does not illustrate adaptation to the environment ?
Colour changes chameleons
Streamlined shape of fishes
Light bones in birds
a weightlifter developing huge muscles
Possession of fins by fishes
Correct answer is D
No explanation has been provided for this answer.
Sickle cell anaemia
Haemophilia
Diabetes mellitus
Colour blindness
River blindness
Correct answer is A
No explanation has been provided for this answer.