Evidence of Evolution Worksheet
Explore the various types of evidence that support the theory of evolution, including fossils, homologous structures, embryonic development, and molecular biology for 7th-grade science.
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Evidence of Evolution Worksheet
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Read each question carefully and answer to the best of your ability. This worksheet will test your knowledge of the different types of evidence that support the theory of evolution.
1. Which type of evidence involves comparing the bone structures of different organisms?
Fossil evidence
Embryological evidence
Homologous structures
Molecular evidence
2. The remains or traces of organisms from the past are called:
Genes
Fossils
Embryos
Proteins
1. Similarities in early embryonic development among different species suggest a common ancestor.
True
False
2. DNA comparisons can reveal how closely related different species are.
True
False
1. Structures that are similar in different species because of common ancestry are called .
2. The study of embryos and their development is known as .
3. The deeper a fossil is found in rock layers, the it usually is.
1. Examine the image below showing homologous structures. Explain how the similarities and differences in these structures provide evidence for evolution.
2. How does the fossil record support the idea that life on Earth has changed over time?
Match each term with its definition.
1. Vestigial structures
a. Structures that had a purpose in an ancestor but are reduced and unused in modern organisms.
2. Analogous structures
b. Structures that have similar functions but different evolutionary origins.
3. Molecular clock
c. A technique that uses mutation rates in DNA to estimate the time that two species diverged.
1. Why is it important to have multiple lines of evidence to support the theory of evolution?