Homework Answers
ecological reproductive isolation mechanism is most common in allopetric speciation.
Because of geographical barrier species reproduce within their habitat. do not interbreed with different habitat or ecological region.
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QUESTION 5 Which type of reproductive isolation mechanism is most closely related to allopatric speciation? O...
Two species cannot mate with each other because they are Allopatric; this form of Reproductive Isolation...
Two species cannot mate with each other because they are Allopatric; this form of Reproductive Isolation is __ _? 4. Gametic Incompatible Behavioral c Temporal o. Ecological
this is an evolution question Allopatric speciation is probably the most common way that new species...
this is an evolution question
Allopatric speciation is probably the most common way that new species form. Please describe a hypothetical scenario in which an initial ancestral population (pick whatever species you want) could split to form a new species through allopatric speciation. A fully. correct answer will at least incorporate ALL of the following terms: gene flow.divergence, natural selection (including sexual selection), genetic drift, and reproductive isolation
Two closely related species have different niches. What reproductive barrier is possible? mechanical,behavioral,temporal,habitat, or gametic
Two closely related species have different niches. What reproductive barrier is possible? mechanical,behavioral,temporal,habitat, or gametic
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar...
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar morphology since the Mesozoic era? a. stabilizing b. directional c. diversifying d. sexual e. artificial 17. Which scenario will demonstrate disruptive (diversifying) selection? a. There is heterozygote advantage (heterozygous individuals have the highest fitness). b. Female flies collect sperm from different males in her sperm bag. c. Individuals with intermediate phenotype are inferior competitors against homozygous individuals d. Insects become resistant to the most...
98. All of the following are examples of sympatric speciation mechanisms except for: a. behavioral isolation....
98. All of the following are examples of sympatric speciation mechanisms except for: a. behavioral isolation. b. gametic incompatibility c. physical separation d. temporal isolation e. hybrid non-viability. 99. True/False Bacteria are so diverse because their DNA and molecular biology is so diverse 100. True/False. Taxonomy is a fascinating field and many biologist relish the opportunity to taxonomically categorize things (FALSE FYI).
Under allopatric speciation, secondary reinforcement occurs after secondary contact
Q5 Under allopatric speciation, secondary reinforcement occurs after secondary contact a when neither a pre-zygotic nor a post-zygotic reproductive isolating mechanism evolves during the period of allopatry b. when a pre-zygotic, but not a post-zygotic reproductive isolating mechanism evolves during the period of allopatry c. when a post-zygotic, but not a pre-zygotic reproductive isolating mechanism evolves during the period of allopatry d. when both a pre-zygotic and a post-zygotic reproductive isolating mechanism evolve during the period of allopatry e when assortative mating is fully...
Male call from population 1 Male call from population 2 Number of calls approached first Females...
Male call from population 1 Male call from population 2 Number of calls approached first Females from population 1 Females from population 2 species of frog has two allopatric populations separated by a deep canyon. The populations have been isolated from each other for at least 10 000 years. For her thesis, a student interested in reproductive isolation performed a mate choice experiment in which she put a female frog between two speakers. One speaker played the call of a...
NTRODUCTION Under nearly all circumstances, postzygotic reproductive isolation cannot evolve under the direct action of natural...
NTRODUCTION
Under nearly all circumstances, postzygotic reproductive
isolation cannot evolve under the direct action of natural
selection. Instead, postzygotic isolation evolves as a by-product
of other genetic changes as proto-species diverge. In contrast,
natural selection can directly act to enhance prezygotic
reproductive isolation. Consider two species with overlapping
ranges. If hybrids between the species are less fit than pure
species individuals, females that mated with heterospecific males
would be at a selective disadvantage, because their resulting
offspring had low fitness....
Question 43 (2 points) Saved Which of the following is most closely related to (i.e. most...
Question 43 (2 points) Saved Which of the following is most closely related to (i.e. most recently shared a common ancestor with) modern humans? Austrolopithecus Afarensis Homo neanderthalensis O Paranthropus robustus Chimpanzee Question 44 (2 points) Water enters the water vascular system of echinoderms through the: mouth anus madreporite tube feet
QUESTION 14 Below is a cartoon depicting various geological events, starting with one large island (panel...
QUESTION 14 Below is a cartoon depicting various geological events, starting with one large island (panel 1) and ending with four smaller islands sequentially splitting off from each other (panels 2 to 5). Initially, there was only Species A inhabiting on the big island. However, as time went on, more species evolved on these smaller islands, such that at the current time (panel 5), there are five species. Their phylogenetic relationships are shown on the last panel. Please answer questions...
Two species cannot mate with each other because they are Allopatric; this form of Reproductive Isolation is __ _? 4. Gametic Incompatible Behavioral c Temporal o. Ecological
this is an evolution question
Allopatric speciation is probably the most common way that new species form. Please describe a hypothetical scenario in which an initial ancestral population (pick whatever species you want) could split to form a new species through allopatric speciation. A fully. correct answer will at least incorporate ALL of the following terms: gene flow.divergence, natural selection (including sexual selection), genetic drift, and reproductive isolation
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar morphology since the Mesozoic era? a. stabilizing b. directional c. diversifying d. sexual e. artificial 17. Which scenario will demonstrate disruptive (diversifying) selection? a. There is heterozygote advantage (heterozygous individuals have the highest fitness). b. Female flies collect sperm from different males in her sperm bag. c. Individuals with intermediate phenotype are inferior competitors against homozygous individuals d. Insects become resistant to the most...
98. All of the following are examples of sympatric speciation mechanisms except for: a. behavioral isolation. b. gametic incompatibility c. physical separation d. temporal isolation e. hybrid non-viability. 99. True/False Bacteria are so diverse because their DNA and molecular biology is so diverse 100. True/False. Taxonomy is a fascinating field and many biologist relish the opportunity to taxonomically categorize things (FALSE FYI).
Male call from population 1 Male call from population 2 Number of calls approached first Females from population 1 Females from population 2 species of frog has two allopatric populations separated by a deep canyon. The populations have been isolated from each other for at least 10 000 years. For her thesis, a student interested in reproductive isolation performed a mate choice experiment in which she put a female frog between two speakers. One speaker played the call of a...
NTRODUCTION
Under nearly all circumstances, postzygotic reproductive
isolation cannot evolve under the direct action of natural
selection. Instead, postzygotic isolation evolves as a by-product
of other genetic changes as proto-species diverge. In contrast,
natural selection can directly act to enhance prezygotic
reproductive isolation. Consider two species with overlapping
ranges. If hybrids between the species are less fit than pure
species individuals, females that mated with heterospecific males
would be at a selective disadvantage, because their resulting
offspring had low fitness....
Question 43 (2 points) Saved Which of the following is most closely related to (i.e. most recently shared a common ancestor with) modern humans? Austrolopithecus Afarensis Homo neanderthalensis O Paranthropus robustus Chimpanzee Question 44 (2 points) Water enters the water vascular system of echinoderms through the: mouth anus madreporite tube feet
QUESTION 14 Below is a cartoon depicting various geological events, starting with one large island (panel 1) and ending with four smaller islands sequentially splitting off from each other (panels 2 to 5). Initially, there was only Species A inhabiting on the big island. However, as time went on, more species evolved on these smaller islands, such that at the current time (panel 5), there are five species. Their phylogenetic relationships are shown on the last panel. Please answer questions...
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