Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 18, Problem 8RQ
Which situation would most likely lead to allopatric
- Flood causes the formation of a new lake
- A storm causes several large trees to fall down
- A mutation causes a new trait to develop
- An injury causes an organism to seek out a new food source.
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Choose which evolutionary mechanism is most likely to cause speciation events. founder effect gene flow mutation natural selection non-random mating
Which of the following would NOT be a reason for a speciation event?
Group of answer choices
comfortable environmental conditions
plentiful food supplies
very few natural disasters and/or catastrophic events
increased amounts of predators
lack of predators
Gene flow is necessary for speciation to take place.
Group of answer choices
True
False
Chapter 18 Solutions
Biology 2e
Ch. 18 - Figure 18.14 Which is most likely to survive,...Ch. 18 - Figure 18.22 If two species eat a different diet...Ch. 18 - Figure 18.23 Which of the following statements is...Ch. 18 - Which scientific concept did Charles Darwin and...Ch. 18 - Which of the following situations will lead to...Ch. 18 - Which description is an example of a phenotype? A...Ch. 18 - Which situation is most likely an example of...Ch. 18 - Which situation would most likely lead to...Ch. 18 - What is the main difference between dispersal and...Ch. 18 - Which variable increases the likelihood of...
Ch. 18 - What is the main difference between autopolyploid...Ch. 18 - Which reproductive combination produces hybrids?...Ch. 18 - Which condition is the basis for a species to be...Ch. 18 - Which situation is not an example of a prezygotic...Ch. 18 - Which term is used to describe the continued...Ch. 18 - Which components of speciation would be least...Ch. 18 - If a person scatters a handful of garden pea plant...Ch. 18 - Why do scientists consider vestigial structures...Ch. 18 - How does the scientific meaning of “theory” differ...Ch. 18 - Explain why the statement that a monkey is more...Ch. 18 - Why do island chains provide ideal conditions for...Ch. 18 - Two species of fish had recently undergone...Ch. 18 - Why can polyploidy individuals lead to speciation...Ch. 18 - What do both rate of speciation models have in...Ch. 18 - Describe a situation where hybrid reproduction...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which situation would most likely lead to allopatric speciation? a. A flood causes the formation of a new lake. b. A storm causes several large trees to fall down. c. A mutation causes a new trait to develop. d. An injury causes an organism to seek out a new food source.arrow_forwardSpeciation events can occur on a variety of timescales. Which factor is NOT likely to influence the rate of speciation? Selection pressures Color of the organism Generation time Mutation ratearrow_forwardn which situation would it make sense to use the morphological species concept? When you are able to collect data about how individuals in your study use their habitat, but you are unable to determine if they interbreed When working with fossils from extinct organisms When you only have genetic data about each organism in your study When you are not able to collect data about how individuals in your study use their habitat, but you are able to collect reproductive dataarrow_forward
- Scientists today can use many investigative methods to study evolution. Which method was developed after Darwin's time? O DNA comparisons observations comparison of fossils experimentationarrow_forwardSpeciation Match each situation to the type of speciation that is likely to occur. NOTE: If you want to change your selection, you'll need to delete the one you already chose. After you delete it, the list of choices will pop back up and you can make a different choice. A behavioral change prevents interaction between individuals from two groups sympatric Small groups become spread out over many different islands with different habitats adaptive radiation a valley becomes divided by a river, separating two groups allopatricarrow_forwardWhich species concept defines a species as a group of individuals that can reproduce and produce fertile offspring? Morphological species concept Darwinian species concept Phylogenetic species concept Biological species conceptarrow_forward
- Continental drift would have resulted in speciation. Group of answer choices True Falsearrow_forwardHow is sympatric speciation different from allopatric speciation? Group of answer choices Allopatric speciation requires a geographic barrier, while sympatric speciation occurs in one place Allopatric speciation results in hybrids, while sympatric speciation does not Allopatric speciation is a result of behavioral isolation, while sympatric speciation is a result of habitat isolation Allopatric speciation occurs in one place, while sympatric speciation requires a geographic barrierarrow_forwardSpeciation Producing offspring that is infertile is a barrier to reproduction. O postzygotic O prezygoticarrow_forward
- The evolution of flight feathers might have allowed ancestral dinosaurs to rapidly diversify into the birds living today. If true, this would an example of Question 22 options: Polyploidy Assortative mating Global adaptive radiation Founder effect Analogyarrow_forwardImagine a field of monkey flowers. Some of them are pink and others are red. It turns out that the pink flowers are pollinated mostly by bumblebees, whereas the red flowers are pollinated mostly by hummingbirds. As a result pink flowers are fertilized mostly by pollen from other pink flowers, and red flowers are fertilized mostly by pollen from other red flowers. The pink and red flowers have become separate species. What type of speciation is this? Sympatric speciation type (my answer) What mechanism of reproductive isolation was involved? ??arrow_forwardA population of insects is composed of individuals with red bodies and individuals with yellow bodies. A storm moves a small group of red insects to a new location where they thrive as a new population. What has occurred in the new population?* Bottleneck effect Sympatric speciation Founder effect Temporal isolation All living organisms use DNA and RNA as their genetic code roundworms, in fact, have 25% of their DNA in common while humans and chimpanzees have 98% in common. What type of evidence of evolution is this? * Comparative embryologyarrow_forward
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