BIO MOD 2

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10 Terms

1
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What is the biological species concept?
A species is a group of interbreeding organisms that produce fertile offspring.
2
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What is the morphological species concept?
A species is defined by physical characteristics and structures.
3
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What is the phylogenetic species concept?
A species is the smallest group sharing a common ancestor on a phylogenetic tree.
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What is parthenogenesis?
A form of asexual reproduction where offspring develop from unfertilised eggs.
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Why is sexual reproduction advantageous?
It increases genetic diversity and adaptability.
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What is the Red Queen hypothesis?
Species must constantly evolve to survive against ever-evolving opponents (e.g.
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What does hybridisation mean in evolution?
It’s the interbreeding of two distinct species
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What is adaptive radiation?
Rapid evolution of multiple species from a common ancestor
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What does a node represent on a phylogenetic tree?
A common ancestor of descendant groups.
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How are phylogenies constructed?
Using morphological traits