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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 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
2) Which of these is an example of homologous structures?
A
plant seed and bird egg
B
bird wing and insect wing
C
horse legs and insect wings
D
horse legs and human legs
3) 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 have the same function in different 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
homologous structures
B
analogous structures
C
biochemical characters
D
morphological characters
5) Where are the evidences for evolution?
A
in the genetic diversity of the modern populations
B
in the animal's hemoglobin amino acid sequence
C
in fossils, morphological characters, biochemical characters
D
in the ecosystems diversity
6) Evolution can be started by
A
changes in the populations alleles ratio
B
change in the populations birth rate
C
increase in the populations size
D
changes in the populations behaviour
7) Evolution can be caused by
A
increase in the populations size
B
changes in the environment
C
appearance of new characters
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
adaptation
D
evolution
9) How is fitness measured?
A
the calories consumed daily
B
the genetic diversity of the populations
C
the number of offspring produced
D
the size of the populations
10) speciation is
A
the creation of a new specie
B
the name given to a specie
C
the development of an organism
D
the extinction of a specie
11) this event can lead to speciation
A
there is a severe drought for one year
B
a thunderstorm makes a river impossible to cross
C
the sea level rises and a new island is disconnected from the land
D
a new allele appears in the population
12) In the gradual speciation model
A
new species gradually replace the extinct ones
B
species remain the same over a long time, then suddenly changes
C
species change constantly over a long time
D
part of a population remains isolated and becomes a new species
*select an answer for all questions
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