Naturalists who have accepted evolutionary theory now propose that:all of the items listedextinction occurs when the food supply becomes nutritionally unbalancedO populations of plants and animals in nature most often consist of individuals that are clones ofeach otherpopulations of a species that become isolated from others by adapting to differentenvironmental niches quickly become extinctthose individuals whose variation gives them an advantage in staying alive long enough toreproduce are more likely to pass their traits on to the next generation

Step .1.1: This entails the description of natural selection which is an important aspect of…

Answered: Naturalists who have accepted…

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter18: Evolution And The Origin Of Species

Section: Chapter Questions

Problem 3VCQ: Figure 18.23 Which of the following statements is false? Punctuated equilibrium is most likely to...

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Similar questions

House sparrows (Maya) were introduced to North America in 1852. Since that time thesparrows have evolved different characteristics in different locations. Sparrow populations inthe north are larger-bodied than sparrow populations in the south. This divergence inpopulations is probably at least partly a result of natural selection: larger-bodied birds canoften survive lower temperatures than smaller-bodied birds can. Colder weather in the northmay select for larger-bodied birds. What type of evolution based on natural selectionaccounts for this observation? Explain your answer.
Adaptations B Fossils Ancestral structures Homologous structures 2. The process by which individuals that are better adapted to their environment are more lik to survive and reproduce than other members of the same species is called Natural selection Evolution C Competition Over production 3. Which of the following is the best example of an adaptation that helps organisms surviv their environment? A green coloring in lizards living on gray rocks B. a thick coat of fur on animals that live in the desert an extensive root system in desert plants
In _____________, new species of a lineage move into a wide range of habitats by way of bursts of microevolutionary events. a. an adaptive radiation b. natural selection c. genetic drift d. punctuated equilibrium
According to the punctuated equilibrium model, (a) populations slowly diverge from one another (b) the evolution of species occurs in spurts interspersed with long periods of stasis (c) evolutionary novelties originate from preadaptations (d) reproductive isolating mechanisms restrict gene flow between species (e) the fossil record, being incomplete, does not accurately reflect evolution as it actually occurred
Vestigial structures are: structures that were helpful to our ancestors but do not serve any useful purpose under current conditions structures that are only helpful when there is competition for survival structures that are harmful relics of our evolution structures that appear to contradict our understanding of how evolution works O000
Which of the following groups of organisms have evolved as a result of artificial selection? * Farm crops like wheat, corn, and lettuce O Predators like lions, cougars, and bears Large trees like redwoods and sequoias Gastropods like slugs and snails IMO
Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. VWhales have lost their hind limbs. How can natural selection account for these losses? The ancestors of these organisms experienced harmful mutations that forced them to lose these structures. Natural selection accounts for these losses by the principle of use and disuse. OIf the function of these structures has diminished over long periods of time, each of these structures presented greater costs than benefits. O Natural selection cannot account for losses, but accounts only for new structures and functions.
Which of the following statements is true regarding the phrase "adaptive radiation"? O It refers to multiple speciation events within an evolutionary lineage. It refers to many populations of the same species. It is the result of genetic drift occuring many times over evolutionary time. Gene flow is an evolutionary mechanism that can account for adaptive radiations.
What is NOT a product of evolution? O Adaptations O The great chain of being O Vestigial organs O Biodiversity
Imagine that you are an evolutionary biologist currenyly studying a particular species of snake on an island off the coast of Durban, South Africa and that you have information indicating that1000 years ago, the same species of snakes in that island was observed to exist in a variety of colours (Red blue,yellow green) and that most of the snakes were blue. This same species of snakes and the same mixof colours were also found on the mainland (i.e Kwazulu Natal) Assuming that all the snakes are descended from an ancestral blue snake, explain this change in colour frequency (evolution) as though it were based solely on each of the following processes. a. Natural selection b. Bottleneck effect c. Founder effect
Which scenario would be a moder nexample of Lamarckianismm? A strain of houseflies resistant to insecticides emrges Squirrels separated by a river are found to be unable to interbreed Snails are found to have thicker shells generations after the introduction of a predator A son is bornw ith a portion of his right index finger mssing -- the same portion that was severed from his father's hand in an accident.
« > A Moving to another question will save this response. Charles Darwin was the first person to propose: That the earth is older than a few thousand years. O A mechanism for how evolution occurs. A mechanism for evolution that was supported by evidence A way to use artificial selection as means for domesticating animals and plants.

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