Adaptive Radiations
Adaptive Radiations: Overview
This topic covers concepts such as Adaptive Radiation, Darwin's Finches of the Galapagos Islands, Adaptive Radiation of Marsupials of Australia, etc.
Important Questions on Adaptive Radiations
Darwin’s finches illustrate which of the following phenomenon:
Select the option which is an example of adaptive radiation:
Assertion (A): 'Adaptation' for coping with environmental extremes is defined as any attribute of the organism (morphological, physiological, behavioural) that enables it to survive and reproduce in its habitat.
Reason (R): Plant adaptations have evolved over a short evolutionary time and are due to changes that occur in genetic material during acclimatisation.
The correct answer is
Flying squirrel and flying phalanger represent the phenomenon of
Evolution of different species in given area starting from a point and spreading to other geographical area is known as :
With respect to their origin, find the odd one out.
What will determine whether the newly formed species are two distinct types, when an inter-breeding population of finches was geographically separated and formed two isolated groups.
The evolution of different species in a given geographical area starting from a point and literally radiating to other areas/habitats is referred to as
Due to geographical isolation, the different species are formed. Such species are called as
Assertion: The Galapagos finches are a classical example of Adaptive Radiations.
Reason: According to Darwin, the difference in size and shape of the beaks was due to the adaptation of the species to different food habits.
Select the odd one with respect to the Australian marsupials.
Darwin's finches of Galapagos islands provide an evidence in favour of?
A group of about 15 species of passerine birds studied by Darwin found on Galapagos islands represent
The evolution of different species in a given area starting from a point and spreading to other geographical areas is known as:
The pouched mammals of Australia survived because of:
The _______ shows adaptive radiation resulting from competition for food in a population.
The consequence of the Industrial Revolution which took place in England was
