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WorksheetsEvidence for Evolution
Total questions: 10
Worksheet time: 5mins
Which of the following is evidence to support the idea that two different species might have a common ancestor?
Many of their genes are the same
Their methods of respiration are alike
They use the same means of locomotion
Their fossils were found in the same location
The fossil record provides evidence of how things have changed over time. The table below shows the evolution of the origin of Tetrapods.
When looking at the fossil record above, what conclusion can be made based on the evidence?
None of the organisms are related.
Tulerpeton is related to living tetrapods, but not to Tiktaalik
All of the organisms have a common fish ancestor.
Ichthyostega are more closely related to living tetrapods than to Tulerpeton.
The occurrence of the same amino acid sequence in digestive proteins in two morphologically unrelated species provides evidence that these two species —
occupy the same niche
have annalogous structures
descended from a common ancestor
have evoloved convergently
When certain individuals are better suited/adapted to their environment and reproduce most successfully
natural selection
adaptation
evolution
evidence for evolution
All are examples of evidence for evolution EXCEPT
Embryology
Fossil record
Adaptation
Comparative anatomy
Genetics
The wing of a bat, arm of a man, and flipper of a whale have similar internal structures. Even though these structures have diverse functions, their similarities suggest-
Development in similar environments
Similar reactions to environmental stress
Separate development merging to a common form
Development from a common ancestor
Horses belong to an order of organisms called Perissodactyla, or odd-toed ungulates. The distinguishing characteristic of odd-toed ungulates is that their third, or middle toe, is the largest, while the other four toes are reduced or absent.
Based on this information, which organism shares the most recent common ancestor with the modern horse and would also be classified as Perissodactyla?
Cow
Tapir
Dog
Pig
Cetaceans are whales and their relatives. The diagram shows some fossils of cetaceans.
Which statement provides the best evidence that Ambulocetus natans is an ancestor of Basilosaurus isis?
Homologous structures occur in each fossil.
Similar nitrogenous bases are found in the DNA of each fossil.
The fossils were found in different locations.
The youngest fossil is larger than the older fossils.
Which of these factors should be compared to best determine how closely species are related to each other?
Number of genes
Sequence of amino acids
Location of chromosomes
Physical similarities in body structure
The prefix Homo- means -----
Ex. Homologous structures, homozygous, homologous chromosomes
same
different
opposite
flower
