CH27Quiz aecture 4) Help Save Exit submit The new model of evolution that proposes that organisms spend most of their tme in fairly unchanging form and undergo occasional bursts of speciation is called Multiple Choice genetic drift. phyletic gradualism. sympatric speciation punctuated equilibrium Prev 25 of 25 t Solution 25) punctuated equilibrium The theory of evolution based on patters of first appearance and subsequent histories of species in the fossil record is called as punctuated equilibrium. 24) recent common ancestor and allits descendents A cladogram is a diagramatic representation to show relations among organisms witha a recent common ancestor. It differs from an evolutionary tree as it does not show how ancestors are related to descendants, nor does it show how much they have changed thus many evolutionary trees can be inferred from a single cladogram. 26) Originally one species but now two species. The insect originally same species but due to geographic barriers over time a new species develoved. 27) a geographic separation occurs between subpopulation. Allopatric speciation is also called as geographic speciation. This type of speciation occurs when a biologically same species become a victim of geographically barrier to an extent that interferes with genetic interchange. 28)reproductive isolation between certain subpopulation occurs. Evolution of a new species from a single ancestral species while inhabiting the same geographic region is called as Sympatric speciation..

1. CH27Quiz aecture 4) Help Save Exit submit The new model of evolution that proposes that
organisms spend most of their tme in fairly unchanging form and undergo occasional bursts of
speciation is called Multiple Choice genetic drift. phyletic gradualism. sympatric speciation
punctuated equilibrium Prev 25 of 25 t
Solution
25) punctuated equilibrium

2. The theory of evolution based on patters of first appearance and subsequent histories of species
in the fossil record is called as punctuated equilibrium.
24) recent common ancestor and allits descendents
A cladogram is a diagramatic representation to show relations among organisms witha a recent
common ancestor. It differs from an evolutionary tree as it does not show how ancestors are
related to descendants, nor does it show how much they have changed thus many evolutionary
trees can be inferred from a single cladogram.
26) Originally one species but now two species.
The insect originally same species but due to geographic barriers over time a new species
develoved.
27) a geographic separation occurs between subpopulation.
Allopatric speciation is also called as geographic speciation. This type of speciation occurs when
a biologically same species become a victim of geographically barrier to an extent that interferes
with genetic interchange.
28)reproductive isolation between certain subpopulation occurs.
Evolution of a new species from a single ancestral species while inhabiting the same geographic
region is called as Sympatric speciation.