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treetreee treetreee
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4 years ago
After reading the paragraph below, answer the questions that follow.

The family Felidae (cats) is distributed across Africa, Eurasia, North America, and South America and is hypothesized to have eight major lineages (Panthera, bay cat, caracal, ocelot, lynx, puma, leopard, and domestic cat groups) as shown in this phylogenetic tree, constructed from DNA sequences. Scientists used a molecular clock and fossil evidence to date the divergence of each group. The dates of divergence are provided in the accompanying figure.




Which groups would be expected to have the greatest number of genetic differences?

▸ Domestic cat and leopard groups

▸ Puma and ocelot groups

▸ Bay cat and domestic cat groups

▸ Leopard and lynx groups
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Campbell Biology: Concepts and Connections

Campbell Biology: Concepts and Connections


Edition: 8th
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coltonf1coltonf1
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treetreee Author
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#2
4 years ago
Brilliant
wrote...
#3
4 years ago
After reading the paragraph below, answer the questions that follow.

The family Felidae (cats) is distributed across Africa, Eurasia, North America, and South America and is hypothesized to have eight major lineages (Panthera, bay cat, caracal, ocelot, lynx, puma, leopard, and domestic cat groups) as shown in this phylogenetic tree, constructed from DNA sequences. Scientists used a molecular clock and fossil evidence to date the divergence of each group. The dates of divergence are provided in the accompanying figure.




The banded linsang is not a member of the Felidae. Its inclusion in this evolutionary analysis is to

▸ guarantee the parsimony of the resulting phylogenetic tree.

▸ serve as an ingroup and distinguish clades with shared derived characters.

▸ determine the group in which differences in DNA sequences first evolved.

▸ demonstrate that changes in DNA sequences are not goal directed.
wrote...
#4
4 years ago
determine the group in which differences in DNA sequences first evolved.
zar
wrote...
#5
4 years ago
After reading the paragraph below, answer the questions that follow.

The family Felidae (cats) is distributed across Africa, Eurasia, North America, and South America and is hypothesized to have eight major lineages (Panthera, bay cat, caracal, ocelot, lynx, puma, leopard, and domestic cat groups) as shown in this phylogenetic tree, constructed from DNA sequences. Scientists used a molecular clock and fossil evidence to date the divergence of each group. The dates of divergence are provided in the accompanying figure.




The cheetah, which is currently found in Africa, is part of the puma group. Which of the following predictions is most consistent with the evolutionary hypotheses represented in the phylogenetic tree?

▸ The cheetahs evolved from the lynxes between 7 and 9 million years ago while Laurasia was still connected to Gondwana.

▸ All the cats that are currently found in Africa evolved from a common ancestor in Eurasia about 9 million years ago.

▸ A land bridge between North America and Eurasia formed as a result of lowered sea levels between 4 and 7 million years ago.

▸ The common ancestor of all the species in the puma group dispersed from Africa more than 10 million years ago.
wrote...
#6
4 years ago
A land bridge between North America and Eurasia formed as a result of lowered sea levels between 4 and 7 million years ago.
zar
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#7
4 years ago
Smart ... Thanks!
wrote...
#8
4 years ago
After reading the paragraph below, answer the questions that follow.

The family Felidae (cats) is distributed across Africa, Eurasia, North America, and South America and is hypothesized to have eight major lineages (Panthera, bay cat, caracal, ocelot, lynx, puma, leopard, and domestic cat groups) as shown in this phylogenetic tree, constructed from DNA sequences. Scientists used a molecular clock and fossil evidence to date the divergence of each group. The dates of divergence are provided in the accompanying figure.




According to the phylogenetic tree, what is the best explanation for why members of the Felidae are found on nearly all the major continents?

▸ Species selection for fast predators was common on most continents.

▸ The Felidae diversified in the Mesozoic, when the Earth's continents were still close together.

▸ Divergence and migration occurred multiple times, in multiple locations.

▸ The common ancestor of the Felidae evolved on Pangaea.
wrote...
#9
4 years ago
Divergence and migration occurred multiple times, in multiple locations.
wrote...
#10
4 years ago
After reading the paragraph below, answer the questions that follow.

The family Felidae (cats) is distributed across Africa, Eurasia, North America, and South America and is hypothesized to have eight major lineages (Panthera, bay cat, caracal, ocelot, lynx, puma, leopard, and domestic cat groups) as shown in this phylogenetic tree, constructed from DNA sequences. Scientists used a molecular clock and fossil evidence to date the divergence of each group. The dates of divergence are provided in the accompanying figure.




Scientists have observed that for several species of smaller Felidae (such as ocelots and wild members of the domestic cat group), individuals that are kept in zoos become tame, that is, friendly to humans. This behavior is a ________ that may have made domestication of the house cat's ancestor more likely.

▸ exaptation

▸ parsimony

▸ clade

▸ molecular clock
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#11
4 years ago
exaptation
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#12
4 years ago
You make an excellent tutor!
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#13
3 years ago
TY
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