18 Questions
What is the main reason why fossils are considered the most direct evidence of evolution?
Successive evolutionary changes can be observed when comparing old and young fossils.
Why are fossils rare according to the text?
Geological factors such as habitat and geographic location play a role in fossil rarity.
How many fossil species have been discovered so far according to the text?
Around 300,000
What is the minimum age requirement for an organism to be considered a fossil?
>10,000 years old
Which of the following is NOT a biological factor that can affect fossilization?
Type of rock
Approximately how many T.rex fossils have been discovered according to the text?
Exactly 32 fossils
What type of fossils are used to identify or define a geological period?
Index Fossils
Which fossilization process involves organic materials being replaced by minerals in bones and wood?
Permineralization
What type of fossils are more or less complete organisms preserved in amber, tar, or ice?
Original Remains
Which type of fossil reflects animal behavior, locomotion, and diet?
Trace Fossils
What is the term for the process where a mold is formed after the organic material decomposes and minerals fill the space?
Cast and Molds
Which type of fossilized remains show traits of both an ancestral group and a descendant group?
Transitional Fossils
What term is used in the text to describe 'transitional forms'?
Missing link
Based on the text, what does 'Orthogenesis' suggest about the evolution of species?
Evolution is linear and progressive
What does the text mention as a factor that affects the possibility of cloning an extinct animal from a fossil?
Type of the fossil
What is the approximate half-life of DNA, as mentioned in the text?
521 years
Why is it impossible to clone non-avian dinosaurs directly from fossils, according to the text?
Their DNA is too degraded
How does the text describe the geographical distribution of species in isolated continents and islands?
They have unique plant and animal communities
Explore the various evidences that support the theory of evolution, including the fossil record, biogeography, convergent evolution, embryology, and selective breeding. Learn about how paleontology plays a crucial role in studying fossils and understanding evolutionary significance.
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