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G11 Ch 15 Evolution
Test Description: Evidences and mechanisms for evolution
Instructions: Answer all questions to get your test result.
1) Evolution is
A
the change of a character over time
B
the change of population size over time
C
the change in a population over time
D
the change in an organism over time
2) Which of these is an example of homologous structures?
A
bird wing and insect wing
B
horse legs and human legs
C
horse legs and insect wings
D
plant seed and bird egg
3) Homologous structures are
A
structures from unrelated organisms that evolved by chance to be very similar fossil remains
B
structures that have the same function in different organisms
C
structures that have a common origin found in related organisms
D
structures that are similar but are evolved from unrelated organisms
4) structures from unrelated organisms that evolved by chance to be very similar are
A
morphological characters
B
biochemical characters
C
homologous structures
D
analogous structures
5) Where are the evidences for evolution?
A
in the animal's hemoglobin amino acid sequence
B
in the ecosystems diversity
C
in fossils, morphological characters, biochemical characters
D
in the genetic diversity of the modern populations
6) Evolution can be started by
A
changes in the populations behaviour
B
change in the populations birth rate
C
changes in the populations alleles ratio
D
increase in the populations size
7) Evolution can be caused by
A
increase in the populations size
B
appearance of new characters
C
changes in the environment
D
change in the populations birth rate
8) A trait produced by natural selection, that increases the fitness of the population
A
homologous structure
B
natural selection
C
evolution
D
adaptation
9) How is fitness measured?
A
the calories consumed daily
B
the genetic diversity of the populations
C
the size of the populations
D
the number of offspring produced
10) speciation is
A
the development of an organism
B
the extinction of a specie
C
the name given to a specie
D
the creation of a new specie
11) this event can lead to speciation
A
a thunderstorm makes a river impossible to cross
B
a new allele appears in the population
C
the sea level rises and a new island is disconnected from the land
D
there is a severe drought for one year
12) In the gradual speciation model
A
species remain the same over a long time, then suddenly changes
B
species change constantly over a long time
C
new species gradually replace the extinct ones
D
part of a population remains isolated and becomes a new species
*select an answer for all questions
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