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

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

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

It is known that it takes very long periods of time for new species to develop, and yet the fossil record for many organisms is characterized by long periods of Stasis (no change) followed by short bursts of intense Speciation (the disappearance of one species followed by the appearance of a new species). Thus in the fossil record, organisms seem to stay the same for long periods of time followed by a “sudden” change in the organisms (sudden with respect to evolution and geology). In other words, it appears that new species evolve suddenly as opposed to over long periods of time. The Theory of Punctuated Equilibrium helps to explain these seemingly contradictory occurrences in the fossil record. Discuss how Punctuated Equilibrium works (think about small offshoot populations that break off from the main population) and how it can explain the fossil record evidence. (Be sure to include information about why fossils of the offshoot population would be rare.)
Human adult males generally have deeper voices than do adult females, which is the direct result of higher levels of testosterone causing the enlargement of the larynx. If one excludes the involvement of gender in the situation, then the pattern that is apparent in the fossil record is most similar to one that should be expected from what type of selection? directional selection stabilizing selection asexual selection disruptive/diversifying selection
In a population of birds, those with either very long or very short beaks are more successful at obtaining food resources than those with medium-sized beaks. Over time, the two extremes of beak size become more prevalent in the population. Which type of selection is occurring, and what might be the long-term consequence for this population? oooo Disruptive selection; speciation Directional selection; speciation Frequency-dependent selection; no change in the population Stabilizing selection; no change in the population
Which of the below best explains why the 14 finch species of the Galapagos Islands are a good example of adaptive radiation? Group of answer choices The 14 finch species originated from 14 different ancestral species that all arrived to the Galapagos over a relatively short time period. The 14 finch species originated over a relatively short time period from a single species. The 14 finch species most likely originated as a result of polyploidy. The 14 finch species on the Galapagos Islands are actually not a good example of adaptive radiation. The 14 finch species evolved their characteristics separately as a result of convergent evolution.
When a population experiences lots of evolutionary changes year after year, they add up to significant change, potentially even becoming different species. What type of evolution is this? * Microevolution Macroevolution
Select all the forces of evolution below. gene flow natural selection random mating genetic drift competition mutation non-random mating
The phyletic gradualism model of speciation asserts that; Most speciation occurs allopatrically Speciation is a slow and gradual process that occurs as species slowly become geographically separated speciation occurs in quickly and then is followed by periods with little if any change Most speciation occurs sympatrially
A group of one species of bacteria are exposed to an antibiotic. The normal bacteria die but some are resistant to the antibiotic and start multiplying. The resistant bacteria flourish and now make up the majority of the population. This is an example of what? Speciation Reduction of Gene Flow Natural Selection Geographic Isolation
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
*Define words *I don’t want pen & paper explanation photo( because I never understand the writing) *if you’re using pen & paper pls write clearly *Also short explanations pls tutor write too much explanations
A massive mudslide takes out half of the trees growing on a mountain side. The trees that are left happen to have slightly thicker branches than the original population. Which type of mechanism evolution is this Natural Selection Genetic drift Gene Flow Bottleneck Effect Founder Effect Sexual Selection