Darwin's Theory
Charles Darwin’s theory explains how living things change over time. What is this theory called?
a) Theory of Relativity
b) Theory of Natural Selection
c) Theory of Fossil Evidence
d) Theory of Genetics
b) Theory of Natural Selection
What are fossils?
a) Ancient tools used by humans
b) Remains of once-living organisms
c) Crystals found in rocks
d) Modern species preserved in ice
b) Remains of once-living organisms
What do similar body plans in different organisms suggest?
a) They evolved from a common ancestor.
b) They have no relation to each other.
c) They share the same environment.
d) They were created separately.
a) They evolved from a common ancestor.
What do all living organisms share as their genetic material?
a) Proteins
b) DNA
c) Fossils
d) Enzymes
b) DNA
What is the study of embryos called?
a) Genetics
b) Embryology
c) Evolutionary biology
d) Anatomy
b) Embryology
Why is Darwin's Theory of Natural Selection considered more than just a hypothesis?
a) It is based on opinions and guesses.
b) It is strongly supported by experiments and observations.
c) It is only accepted by scientists.
d) It conflicts with other scientific ideas.
b) It is strongly supported by experiments and observations.
What do fossils from different time periods show?
a) Organisms remained the same over time.
b) Organisms became less complex over time.
c) Organisms became more complex over time.
d) Fossils cannot show changes over time.
c) Organisms became more complex over time.
Differences in organisms’ body plans suggest what about their environments?
a) They had the same environmental conditions.
b) They adapted to specific environments.
c) They evolved without changes.
d) They moved to identical locations.
b) They adapted to specific environments.
What do scientists compare to determine relationships between species?
a) Fossils and bones
b) DNA sequences
c) Environmental factors
d) Embryos
b) DNA sequences
An embryo is an organism in which stage of development?
a) Final phase of growth
b) Earliest phase of development
c) Middle phase of life
d) Adulthood
b) Earliest phase of development
What type of beliefs does Darwin's theory often clash with?
a) Scientific beliefs
b) Religious and cultural beliefs
c) Economic theories
d) Political systems
b) Religious and cultural beliefs
Ancient organism remains suggest that modern organisms are:
a) Completely unrelated to ancient organisms.
b) Very similar to some ancient organisms.
c) Less evolved than ancient organisms.
d) Separate from ancient life forms.
b) Very similar to some ancient organisms.
What do anatomical similarities provide evidence for?
a) Evolution and common ancestry
b) Random changes in organisms
c) Modern species being unrelated
d) Fossil destruction
a) Evolution and common ancestry
What is the significance of shared DNA sequences between species?
a) They prove organisms are unrelated.
b) They suggest a common ancestor.
c) They show all species evolved at the same time.
d) They indicate fossils are inaccurate.
b) They suggest a common ancestor.
What do embryological studies show about animal development?
a) It is identical for all species.
b) It follows a basic, similar plan.
c) It differs completely among organisms.
d) It has no connection to evolution.
b) It follows a basic, similar plan.
What must all scientific theories, including Darwin’s, be supported by?
a) Opinions and debates
b) Experiments and observations
c) Religious texts
d) Government policies
b) Experiments and observations
What do fossils and ancient remains show about living things?
a) Living things are unrelated.
b) Living things have changed and are connected.
c) Fossils are unrelated to evolution.
d) Evolution only happens in plants.
b) Living things have changed and are connected.
What is the term for structural similarities in organisms?
a) Genetic divergence
b) Anatomical similarities
c) Embryology
d) Fossil adaptation
b) Anatomical similarities
Which two organisms have surprisingly similar DNA?
a) A human and a frog
b) A human and a fruit fly
c) A bird and a fish
d) A dog and a cat
b) A human and a fruit fly
Embryo similarities suggest that animals share what?
a) Unique evolutionary paths
b) A common ancestor
c) Identical environments
d) Completely unrelated traits
b) A common ancestor
Darwin suggested all living organisms descended from what?
a) Separate species
b) A common ancestor
c) Modern-day organisms
d) Complex fossils
b) A common ancestor
What do fossils and remains provide evidence for?
a) That organisms remained unchanged.
b) A common ancestor for all life.
c) That all fossils were created at the same time.
d) That life existed for only a short period of time.
b) A common ancestor for all life.
What concept is supported by the adaptation of organisms to specific environments?
a) Genetic drift
b) Natural selection
c) DNA sequencing
d) Fossil dating
b) Natural selection
DNA similarities between organisms support what concept?
a) That life evolved from a common ancestor
b) That all species are unique and unrelated
c) That DNA is unrelated to evolution
d) That organisms evolve separately
a) That life evolved from a common ancestor
Embryology provides evidence for what scientific theory?
a) Theory of Natural Selection
b) Theory of Relativity
c) Theory of Fossil Evidence
d) Theory of Genetic Drift
a) Theory of Natural Selection