Adaptive radiation is characterized by rapid diversification. Which ecological factor is LEAST likely to be a primary driver of rapid adaptive radiation?
Colonization of a new, geographically isolated environment
Mass extinction events creating vacant ecological niches
Evolution of a key innovation that allows exploitation of new resources
Stable environmental conditions over long periods
Related Questions
Development of different functional structures from a common ancestral form is called
Differential evolution
Adaptive radiation
Non-adaptive radiation
Regressive evolution
The cichlid fishes of the African Great Lakes exemplify remarkable adaptive radiation. However, some lakes show far greater cichlid diversity than others. Which factor is MOST likely to explain this variation in diversity among lakes?
Uniform water temperature and oxygen levels throughout the lake
Absence of other competing fish species in the lake
Presence of diverse habitats and resources within the lake
Lower rates of predation on cichlids in some lakes
Adaptive radiation is characterized by:
Slow and gradual changes over long periods.
Convergence of different species towards similar traits.
Rapid diversification from a common ancestor.
Extinction of a large number of species.
Which of the following is NOT an example of analogous structures?
Wings of an insect and wings of a bird
Flippers of a penguin and flippers of a dolphin
Eyes of an octopus and eyes of a human
Wings of a bird and wings of a bat
Which of the following statement is correct?
The area of a circle can be expressed in terms of its circumference, but the volume of a sphere cannot be expressed in terms of its surface area.
The area of a circle cannot be expressed in terms of its circumference, but the volume of a sphere can be expressed in terms of its surface area.
Neither the area of a circle can be expressed in terms of its circumference, nor the volume of a sphere can be expressed in terms of its surface area.
Both the area of a circle can be expressed in terms of its circumference, and the volume of a sphere can be expressed in terms of its surface area.
Which of the following is NOT a characteristic of adaptive radiation?
Common ancestry of the diversifying species
Phenotype-environment correlation
Trait utility
Slow and gradual evolutionary change over long periods
Adaptive radiation is characterized by rapid diversification. Which ecological factor is LEAST likely to be a primary driver of rapid adaptive radiation?
Colonization of a new, geographically isolated environment
Mass extinction events creating vacant ecological niches
Evolution of a key innovation that allows exploitation of new resources
Stable environmental conditions over long periods
Which of these is NOT a likely scenario for adaptive radiation?
A newly formed volcanic island.
A stable environment with limited resources.
After a mass extinction event.
Introduction of a species to a new environment with diverse habitats.
The wings of a butterfly and the wings of a bird are:
Homologous
Vestigial
Analogous
Rudimentary
Evolution of different species in a given area starting from a point and spreading to geographical areas in known as
Adaptive radiation
Natural selection
Migration
Divergent evolution
