WorksheetsNatural Selection and Evidence of Evolution
Total questions: 39
Worksheet time: 26mins
Which of the following is the collection of life's remains found in sedimentary rock?
natural selection
homologous structures
Charles Darwin
the fossil record
Similar structures with different purposes found in different species are known as _____
vestigial structures
DNA
homologous structures
the fossil record
The study of organisms at their earliest stage of life
embryology
the fossil record
DNA
vestigial structures
The picture shows a/an ___________
homologous structure
vestigial structure
The picture shows a/an ___________
homologous structure
vestigial structure
Which structure is shown in the picture?
analogous structure
homologous structure
vestigial structure
DNA
Which of the following can be determined by observing the embryos shown in the diagram
What best describes the hind leg bones seen in the whale?
The bones are analogous structures to the fins of living fish.
The bones are vestigial structures that had a function in an ancestor.
The bones are homologous structures to the wings of butterflies.
The bones are fossil structures from an extinct ancestor.
What conclusion can you draw from the fact that many modern whale species have vestigial pelvic and leg bones?
The ancestors of whales may have been land mammals
Whales could walk if they wanted to
Whales are preparing to evolve into land animals
Someday whales will be able to walk and will have legs
SELECT ALL THAT APPLY: Which of the following must be true in order for organisms to be considered the same species?
They must be able to mate
They must be able to produce viable offspring
They must have structural similaries
They must have the same bone structure
There are two main ways that speciation happens naturally. Both processes create new species by reproductively isolating populations of the same species from each other. What are these two types of isolation?
geographical and behavioral
geographical and complex
behavioral and complex
locational and geographical
Which best describes punctuated equilibrium?
Speciation occurs due to natural selection
Speciation occurs due to isolation
Speciation occurs slowly in geologic time, followed by long periods with very fast evolutionary change.
Speciation occurs suddenly and rapidly in geologic time, followed by long periods with little evolutionary change.
Which of the following lines of evidence shows that whales are descended from a land-dwelling, four-legged ancestor?
Whales have bone structures in their forelimbs and pelvis that are similar to those of terrestrial mammals
Whale embyros have similar structure to embryos of land-dwelling mammals, birds, and reptiles.
An analysis of DNA shows that whales' closest living relatives are hippopotamuses.
A, B, and C
Which of the following statements accurately describes the role of mutations in evolution
Mutations are the raw material for evolution, but most mutations do not result in evolution.
Most mutations result in a species becoming more dangerous or aggressive.
An organisms can decide to mutate if the environment makes a mutation necessary for survival.
Mutations are almost always beneficial for an individual.
Which of the following is required for a population to diverge into two separate species?
The two populations must have evolved different physical appearances.
The two populations must have mutated at least 10 times.
The two populations must have become reproductively isolated.
The two populations must have evolved analogous structures.
Which are causes of speciation? Choose all that apply
Isolation caused by mountains, rivers and man-made structures
preference for different foods
change in environment
different mating behaviors
Speciation that caused by breeding occurring at different time of the day is called
behavioral isolation
temporal isolation
ecological isolation
habitat isolation
Two unrelated species evolve in a way that makes them more similar.
adaptive radiation
microevolution
coevolution
convergent evolution
divergent evolution
What type of macroevolution is happening in the image?
adaptive radiation
microevolution
coevolution
convergent evolution
divergent evolution
Finches on the Galapagos Islands share similar characteristics because they share a common ancestor but have evolved into many different types of species to eat different foods in order to survive. What type of macroevolution is being described?
adaptive radiation
microevolution
coevolution
convergent evolution
divergent evolution
The rapid evolution of a group following its introduction into a new habitat or occupation of newly available niches is called ________________?
adaptive radiation
microevolution
coevolution
convergent evolution
divergent evolution
Stabilizing Selection
Directional Selection
Disruptive Selection
Stabilizing Selection
Directional Selection
Disruptive Selection
Directional Selection
Stabilizing Selection
Disruptive Selection
Stabilizing Selection
Directional Selection
Disruptive Selection
Directional Selection
Stabilizing Selection
Disruptive Selection
Stabilizing Selection
Disruptive Selection
Directional Selection
Directional Selection
Stabilizing Selection
Disruptive Selection
Cichlid fishes in lakes of the East African Rift. The lakes in this area are believed to support and sustain about 2,000 different species of these fish, each with different ecological and morphological characteristics such as body size. These lakes form a fragmented landscape that bio-geographically isolates the different species of cichlid fish from one another, allowing them, and many of the organisms they live with, to evolve separately.
Phyletic Speciation
Adaptive Radiation
Convergent Evoltion
Co-evolution
In convergent evolution, organisms share physical similarities because they
have a common ancestor
live in similar environments
develop homologous structures
are closely related
