WorksheetsEvolution Practice/Natural Selection
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What causes genetic variation in sexual reproduction?
a)
Meiosis
b)
Mitosis
c)
Natural Selection
d)
Ecology
2.
This picture is an example of
a)
homologous structures
b)
embryological similarities
c)
analogous structures
d)
vestigial structures
3.
Any variation that can help an organism survive in its environment is called a(n):
a)
adaptation
b)
environment
c)
characteristic
d)
competition
4.
The fossil record shows that
a)
all species are today just as they were when they were created
b)
some species are evolutionary transitions between major groups of organisms
c)
most species have not evolved
d)
No species evolve
5.
An example of this would be when two meadowlarks sing different songs and thus cannot mate
a)
Geographical Isolation
b)
Behavioral Isolation
c)
Temporal Isolation
d)
Evolution
6.
All of the possible alleles in a population is called
a)
Gene flow
b)
Genetic Drift
c)
Adaptive Radiation
d)
Gene pool
7.
Choose the one that represents the phenotype
a)
Tall neck
b)
Aa
8.
Natural Selection acts on the
a)
Phenotype
b)
Genotype
9.
Day lillies open their flowers at different times, this isolates them from mating and is called
a)
Behavioral Isolation
b)
Temporal Isolation
c)
Geographical isolation
d)
Evolution
10.
What is a source of variation in a population?
a)
Age
b)
Mutations
c)
Health
d)
Gender
100 %
