Which of the following is the LEAST likely explanation for the relatively rapid diversification of mammals following the Cretaceous-Paleogene extinction event?
Release from competition with dinosaurs
Release from predation by dinosaurs and other large reptiles
Adaptive radiation into newly available ecological niches
Increased mutation rates in mammals
Related Questions
The Coenozoic era is often designated as
Age of fish
Age of reptiles
Age of mammals
Age of amphibians
Which of the following is an extinct animal?
Protopterus
Equus
Archaeopteryx
Columba
Which of the following is NOT a key factor driving evolution?
Natural selection
Genetic drift
Mutations
Static environmental conditions
Which one is the largest ape among the given four genera of apes?
Homo
Pan
Gorilla
Pongo
The crosspterygian fish 'Latimaria' is considered as the ancestor of terrestrial tetrapods. During which period these fishes evolved into Amphibians?
Devonian
Silurian
Ordovian
Cambrian
Give the name of the first organism who invaded land
Plants
Consumers
Animal
Carnivores
In pleistocene epoch, the ancestor of horse is
Eohippus
Mesohippus
Merychippus
Equus
The evolutionary history of a species can be elucidated through phylogenetic analysis. Which of the following statements regarding phylogenetic relationships is INCORRECT?
Shared derived characteristics can be used to define clades.
Organisms that appear more similar are always more closely related.
Phylogenetic trees represent hypotheses about evolutionary relationships.
Branch points on a phylogenetic tree represent the divergence of two or more lineages from a common ancestor.
In which of the following era first mammal like reptile originated?
Permian period
Triassic period
Jurassic period
Tertiary period
A change in the genetic makeup of a population over time is called:
Mutation
Adaptation
Evolution
Natural selection
