The species concept that defines species as the branch (group of organisms) on a monophyletic tree...
The species concept that defines species as the branch (group of organisms) on a monophyletic tree is called:
a.Biological species concept
b.Morphospecies concept
c.Phylogenetic species concept
d.Ecological species concept
Homework Answers
C) phylogenetic species concept.
This concept is also known as the evolutionary concept.
According to this concept species are a group of individuals who share a common ancestor.
Monophyletic tree means group of individuals who share a common ancestor.
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The species concept that defines species as the branch (group of
organisms) on a monophyletic tree...
We take a pair of metaphorical scissors to the tree below cutting it at the branch...
We take a pair of metaphorical scissors to the tree below
cutting it at the branch where the "X" is. We conclude that:
A) A, B, C, D, plus E is a monophyletic group because they have
a common ancestor shared by all 5 taxa.
B) F plus G does not form a monophyletic group because A, B, C,
D, and E are left behind
C) A,B,C, D, and E are a monophyletic group nested
within ABCDEFG.
D) None of these...
The biological species concept (BSC) defines species based on reproductive isolation; distinct species fail to produce...
The biological species concept (BSC) defines species based on reproductive isolation; distinct species fail to produce fertile hybrids. If the BSC is the “gold standard” for understanding what species are, why are most species still recognized based on phenotypic differences (i.e. the morphological species concept)? a. The mating experiments necessary to confirm reproductive isolation are too time-consuming to carry out on all but a small fraction of presumed species pairs. b. Reproductive isolation is not a meaningful concept in the...
In the biological species concept, it is specified that two organisms are of the same species...
In the biological species concept, it is specified that two organisms are of the same species if they breed and Select one: a. produce fertile offspring under normal circumstances. b. are unsuccessful in producing offspring. c. produce fertile offspring under laboratory conditions only. d. produce any offspring.
The biological species concept defines a species as a group of populations whose members have the...
The biological species concept defines a species as a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring. This means that all members of these populations can contribute to a common gene pool. These populations belong to the same species. Genes are transferred between these populations through both direct and indirect gene flow. Biologists used genetic techniques to look for gene flow in 12 wild populations of mice. The populations (designated A...
6) On the tree shown, the numbers represent 7 different species. a) Which pair of species...
6) On the tree shown, the numbers represent 7 different species. a) Which pair of species is more closely related: 4 and 5 or 5 and 7? b) Which pair is more closely related: 1 and 2 c) Which pair is more closely related: 3 and 5 or 2 and 7? or 2 and 4? d) What type of group is made of 3, 5 and 7? e) What type of group is 5 and 6? f) Describe a monophyletic...
shark barracuda salamander dinosaur bat 4.) On the tree above, circle these three groups: a monophyletic...
shark barracuda salamander dinosaur bat 4.) On the tree above, circle these three groups: a monophyletic group (with at least two taxa) a paraphyletic group a polyphyletic group Draw the circles using three different colors (one for each group) and clearly identify each group as mono-, para-, or polyphyletic.
7. Classifying extinct species is difficult, and usually must integrate data from fossil measurements, inferences on...
7. Classifying extinct species is difficult, and usually must integrate data from fossil measurements, inferences on ecology (e.g. classifying carnivore, herbivore using teeth, etc.), and how these are likely to change or not over deep timescales. Which of the following species concepts is likely most usable and operational for extinct taxa, like the dinosaurs in the above tree? Phenetic species concept Evolutionary species concept Biological species concept Fossil species concept None of the above 8. Theropoda (theropods) contains many of...
Question 1 Can the biological species concept be applied to bacterial species M. bovis and M....
Question 1 Can the biological species concept be applied to bacterial species M. bovis and M. tuberculosis? I think the answer is (A) but would appreciate confirmation and reasoning. A) No, M. bovis and M. tuberculosis don't reproduce sexually so species can't be defined based on the ability to interbreed. B) Yes, they are living, biological, organisms so the biological species concept is applicable. C) No, M. bovis and M. tuberculosis inhabit different hosts so don't interbreed in nature. Question...
If you were to create a phylogenic tree of these organisms, which would branch off first...
If you were to create a phylogenic tree of these organisms,
which would branch off first and why?
Lancelet (outgroup) Salamander Tuna Turtle Leopard Dolphin oo - Lamprey o - Character (1) Backbone (2) Hinged jaw (3) Four limbs - o - - o - o 0 (4) Amnion (5) Milk o 0 0 0 (6) Dorsal fin 1 *Although adult dolphins have only two obvious limbs (their flippers), as embryos they have two hind-limb buds, for a total of...
List 3 species that form a monophyletic group, common ancestor of red fox. 100 52 98...
List 3 species that form a
monophyletic group, common ancestor of red fox.
100 52 98 Arctic fox Kit fox Corsac fox Ruppell's fox Red fox Cape fox Blanford's fox Fennec fox Raccoon dog Bat-eared fox Short-eared dog Crab-eating fox Sechuran fox Culpeo fox Pampas fox Chilla Darwin's fox Hoary fox Maned wolf Bush dog Side-striped jackal Black-backed jackal Golden jackal 100 100 L 3-4 Myr Dog 6-7 100 Grey wolf Coyote Ethiopian wolf Dhole African wild dog Grey fox...
We take a pair of metaphorical scissors to the tree below
cutting it at the branch where the "X" is. We conclude that:
A) A, B, C, D, plus E is a monophyletic group because they have
a common ancestor shared by all 5 taxa.
B) F plus G does not form a monophyletic group because A, B, C,
D, and E are left behind
C) A,B,C, D, and E are a monophyletic group nested
within ABCDEFG.
D) None of these...
6) On the tree shown, the numbers represent 7 different species. a) Which pair of species is more closely related: 4 and 5 or 5 and 7? b) Which pair is more closely related: 1 and 2 c) Which pair is more closely related: 3 and 5 or 2 and 7? or 2 and 4? d) What type of group is made of 3, 5 and 7? e) What type of group is 5 and 6? f) Describe a monophyletic...
shark barracuda salamander dinosaur bat 4.) On the tree above, circle these three groups: a monophyletic group (with at least two taxa) a paraphyletic group a polyphyletic group Draw the circles using three different colors (one for each group) and clearly identify each group as mono-, para-, or polyphyletic.
If you were to create a phylogenic tree of these organisms,
which would branch off first and why?
Lancelet (outgroup) Salamander Tuna Turtle Leopard Dolphin oo - Lamprey o - Character (1) Backbone (2) Hinged jaw (3) Four limbs - o - - o - o 0 (4) Amnion (5) Milk o 0 0 0 (6) Dorsal fin 1 *Although adult dolphins have only two obvious limbs (their flippers), as embryos they have two hind-limb buds, for a total of...
List 3 species that form a
monophyletic group, common ancestor of red fox.
100 52 98 Arctic fox Kit fox Corsac fox Ruppell's fox Red fox Cape fox Blanford's fox Fennec fox Raccoon dog Bat-eared fox Short-eared dog Crab-eating fox Sechuran fox Culpeo fox Pampas fox Chilla Darwin's fox Hoary fox Maned wolf Bush dog Side-striped jackal Black-backed jackal Golden jackal 100 100 L 3-4 Myr Dog 6-7 100 Grey wolf Coyote Ethiopian wolf Dhole African wild dog Grey fox...
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