QUESTION 3 An example of a postzygotic reproductive isolating mechanism is O a. Spiders developing elaborate species specifc courtship dances. O b. Shoreline birds don't mate with deep forest birds because they occupy different habitats. O c. The two organisms can mate but the gametes are unable to fuse O d. The two organisms can mate but the offspring is infertile O e. All of the answers given are examples of postzygotic mechanisms of reproductive isolation.

QUESTION 3 An example of a postzygotic reproductive isolating mechanism is O a. Spiders developing elaborate species specifc courtship dances. O b. Shoreline birds don't mate with deep forest birds because they occupy different habitats. O c. The two organisms can mate but the gametes are unable to fuse O d. The two organisms can mate but the offspring is infertile O e. All of the answers given are examples of postzygotic mechanisms of reproductive isolation.

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Description: 3 QUESTION 3An example of a postzygotic reproductive isolating mechanism isO a. Spiders developing elaborate species specifc courtship dances.O b. Shoreline birds don't mate with deep forest birds because they occupy different habitats.O c. The two o

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 20CTQ: Two species of fish had recently undergone sympatric speciation. The males of each species had a...

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Allopatric but not sympatric speciation requires O A. Reproductive isolation B. Geographic isolation C. Spontaneous differences in males and females. O D. Prior hybridization O E. Rapid rate of mutation
Question 3. Phylogenies can represent speciation events due to a. All or any of these b. Prezygotic isolation c. Allopatry and Sympatry d. Postzygotic isolation
Question 2 Why is the morphospecies concept problematic for scientists? O All of the above This concept allows for scientists to define too many species, because it is entirely subjective You can get cryptic species that look too similar to identify O Genetic information might reveal that there are more or fewer species than what the morphology of the organisms implies
Choose correct option do explain. 1.Two closely-related finch species occasionally form hybrids. These hybrids tend to have beaks of an intermediate size to their parental species, which have large and small beaks respectively. What evidence would suggest there is extrinsic postmating isolation? Group of answer choices- a.The hybrids are not able to obtain enough food due to beak size b.The hybrids die early due to deleterious gene combinations c.The hybrids cannot reproduce with members of either parent species d.The hybrids cannot reproduce with other hybrids
Question 11 Allopatric speciation describes populations that are separated by geographical barriers mechanical barriers gametic barriers behavioural barriers ecological barriers
ALLOPATRIC SPECIATION a. Does food affect the mating preferences of the fruitflies? b. What would the results be in each generation if a few fruit flies from thesweet potato/pineapplefruit population had been placed in the bananapopulation or vice versa. Explain your prediction.
Question 39 ... During allopatric speciation, the first event is usually Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a hybridization event. a b. a prezygotic reproductive barrier. disruptive selection. competitive exclusion. geographic separation of two populations. Unanswered
A limitation to the biological species concept is based on the ability to interbreed so can't be used to determine species with asexual reproduction like bacteria and some plants. O True False
Which variable increases the likelihood of allopatric speciation taking place more quickly? a. lower rate of mutation b. longer distance between divided groups c. increased instances of hybrid formation d. equivalent numbers of individuals in each population
The difference between sympatric and parapatric speciation is ___ .a. parapatric speciation occurs only in velvet walking wormsb. sympatric speciation requires a barrier to gene flowc. the extent of overlap in ranged. reproductive isolation does not occur
Multiple choice quection. 1. Choose the correct option from the below sentence and also provide the explanation of each option given geographicaly overlapping populations that produce hybrid offspring with low relative fitness may be undergoing a. clinal isolation b. sympatric speciation c. allopatric speciation d. reinforceent e. geographical isolation 2. If two species of holly (genus ilex ) flower during different months their gene pools may be kept seprated by a. mechanical isolation b. ecological isolation c. gametic isolation d. temporal isolation e. behavioral isolation
Match each term in column A with its definition in column B. Write the letter of the What Have I Learned So Far? correct answer on the blank A B 1. Emigration a. This can be the probability of an individual to mate with other individuals in a population. 2. Immigration b. It is the rearrangement of genes in 3. Recombination chromosomes. c. It is the process by which organisms enter and exit a certain area or region. 4. Genetic drift d. This happens when organisms invade a particular area. 5. Natural selection e. This happens when organisms have left 6. Artificial selection the area. f. This is the change in the DNA sequences that account for evolutionary changes of 7. Genetic mutation organisms. 8. Nonrandom mating g. It is the change of allele frequencies due to small population sizes. 9. Migration h. This is the process by which a certain individual can select traits that are considered favorable and cultured for 10. Population bottleneck preservation of good qualities. i. The…