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Concept explainers
To explain: Whether the statement “Most species that evolved have already become extinct” is true or false.
Introduction: Extinction is a process of termination of one species or group of species. The species formed get extinct on an ongoing basis.
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Answer to Problem 1SQ
Correct answer: The given statement “Most species that evolved have already become extinct” is true.
Explanation of Solution
New species evolve from the older ones. More than 90 percentage of existing species are now extinct. For example, evolved dinosaurs have already become extinct. During the Triassic period, ancestors of dinosaur were evolved from amphibian species. During the Jurassic period, dinosaur’s number increased and by the Cretaceous period, different verities of dinosaurs were evolved. However, during the end of Cretaceous period and beginning of the tertiary period, they become extinct. Thus, the statement is true.
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Chapter 48 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
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- new species divergence Which row below identifies the model of evolution shown in this diagram and offers the best explanation of this model? The statement above is best completed by the answers in row: Row Model Explanation evolutionary history consists of long periods of equilibrium where there is little change, interrupted by periods of speciation gradualism punctuated equilibrium gradual change occurs steadily in a linear fashion; big changes (such as the evolution of a new species) occur as a result of many small changes gradual change occurs steadily in a linear fashion; big changes (such as the evolution of a new species) occur as a result of many small changes gradualism punctuated equilibrium evolutionary history consists of long periods of equilibrium where there is little change, interrupted by periods of speciation Timearrow_forwardDarwin y.S. Lamark Tick the box to say whether the statement is about Darwin's or Lamark's idea: Darwin Lamark Living things can change during their lifetime and pass this information to their offspring (e.g. giraffes stretching their necks to reach higher leaves) Living things are born different because of mutations (e.g. a giraffe is born with a longer neck) Extinctions happen Extinctions do not happen Looked at the beaks of finches and created the idea of evolution саarrow_forwardWhy do some species survive while others go extinct? Explainarrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
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