G11 Ch 15 Evolution Question Preview (ID: 46894)


Evidences And Mechanisms For Evolution. TEACHERS: click here for quick copy question ID numbers.

Evolution is
a) the change in an organism over time
b) the change in a population over time
c) the change of a character over time
d) the change of population size over time

Which of these is an example of homologous structures?
a) bird wing and insect wing
b) horse legs and insect wings
c) horse legs and human legs
d) plant seed and bird egg

Homologous structures are
a) structures that have a common origin found in related organisms
b) structures from unrelated organisms that evolved by chance to be very similar fossil remains
c) structures that are similar but are evolved from unrelated organisms
d) structures that have the same function in different organisms

structures from unrelated organisms that evolved by chance to be very similar are
a) homologous structures
b) analogous structures
c) biochemical characters
d) morphological characters

Where are the evidences for evolution?
a) in fossils, morphological characters, biochemical characters
b) in the animal's hemoglobin amino acid sequence
c) in the genetic diversity of the modern populations
d) in the ecosystems diversity

Evolution can be started by
a) changes in the populations behaviour
b) changes in the populations alleles ratio
c) increase in the populations size
d) change in the populations birth rate

Evolution can be caused by
a) changes in the environment
b) increase in the populations size
c) change in the populations birth rate
d) appearance of new characters

A trait produced by natural selection, that increases the fitness of the population
a) evolution
b) adaptation
c) natural selection
d) homologous structure

How is fitness measured?
a) the calories consumed daily
b) the size of the populations
c) the genetic diversity of the populations
d) the number of offspring produced

speciation is
a) the extinction of a specie
b) the name given to a specie
c) the creation of a new specie
d) the development of an organism

this event can lead to speciation
a) a thunderstorm makes a river impossible to cross
b) the sea level rises and a new island is disconnected from the land
c) there is a severe drought for one year
d) a new allele appears in the population

In the gradual speciation model
a) species change constantly over a long time
b) species remain the same over a long time, then suddenly changes
c) part of a population remains isolated and becomes a new species
d) new species gradually replace the extinct ones

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