Jean-Baptiste Lamarck’s model for large-scale evolutionary change involved: dynamic, monophyletic, branching speciation dynamic, polyphyletic, non-branching speciation static, monophyletic, branching speciation static, monophyletic, non-branching speciation static, polyphyletic, branching speciation

Jean-Baptiste Lamarck’s model for large-scale evolutionary change involved: dynamic, monophyletic, branching speciation dynamic, polyphyletic, non-branching speciation static, monophyletic, branching speciation static, monophyletic, non-branching speciation static, polyphyletic, branching speciation

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter11: Evolution And Its Processes

Section: Chapter Questions

Problem 4RQ: What is the difference between micro- and macroevolution? a. Microevolution describes the evolution...

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Similar questions

Which 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 concept
Choose which evolutionary mechanism is most likely to cause speciation events. founder effect gene flow mutation natural selection non-random mating
What is a reason that speciation can occur? Organisms within a species are brought into closer proximity by a physical barrier. Organisms within an ecosystem make adaptions that involve different breeding times or interactions. Organisms develop traits that are not beneficial to their survival, and these traits are passed from generation to generation. Organisms develop traits that are beneficial and pass on the same traits to all future generations within the same species.
Geographic isolation is an isolating mechanism in nature. Over long periods of time, it can lead to speciation. As the name suggests, geographic isolation is when populations of a species become separated geographically. This could also happen from the founder effect, where a small group breaks away from a larger population and establishes a group in an isolated area. Isolation could also occur when a geographic event, like an earthquake or a landslide separates a population. Once the populations are separated evolution can occur through multiple mechanisms. Natural selection could act on each population, where some individuals have favorable traits for survival. Genetic drift can occur, where genotypes become more common due to random chance. These mechanisms can lead to each subpopulation becoming so different, that they can no longer interbreed and are considered separate species. TIME ●00 • ORIGINAL GEOGRAPHIC REPRODUCTIVE SPECIATION POPULATION BARRIER ISOLATION 1. We have…
Speciation 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 allopatric
How 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 barrier
A 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 embryology
n 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 data
Two biologists are arguing at a conference. One says that the Biological Species Concept (BSC) is superior. Her colleague argues that a different species concept is needed. Which of the following claims of the biologist are true and which are false? 1. The BSC potentially would work for all multicellular organisms. 2. A Morphological Species Concept would work better for cryptic species than the BSC. 3. If two populations of snails are separated by a huge distance, they cannot mate. This means the BSC cannot apply to them.
The diagram below represents the ranges of 3 species (A, B, and C), which are separated by a mountain range and river. It has been hypothesized that these three species arose via vicariance ecological speciation. Specifically, the entire area was originally occupied by a single species. Its range was split first by the mountain range. Later, the river formed, separating populations on the eastern side of the mountains. If this hypothesis is correct, phylogenetic analysis should reveal that: NIS 4 44444 U LEL B All three species are equally related to each other. Species A and B are each other's closest relatives (sister taxa). Species B and C are each other's closest relatives (sister taxa). Species A and Care each other's closest relatives (sister taxa).
In 350 words, distinguish between sympatric, allopatric and parapatric speciation.
What is the nature of the reproductive barrier between a species that mates at dawn (sunrise) and a species that mates at dusk (sunset)? gametic temporal habitat behavioral mechanical A mountain range divides a freshwater snail species into two isolated populations. Erosion eventually lowers the range and brings the two populations together again, but when they mate, the resulting hybrids all produce sterile young. This scenario is an example of allopatric speciation gradualism punctuated equilibrium extinction sympatric speciation