5. Analogy and homology are important concepts used in comparing species. Which of the following pairs of structures are analogous and which are homologous?  a. The dorsal fins of a porpoise and a salmon  b. The jointed leg of a ladybird beetle and a robin  c. A siamang ape’s tail and a human coccyx  d. The bright red bracts of a poinsettia and the green leaves of a rose  e. The bright red bracts of a poinsettia and the red petals of a rose

Q: Traditionally morphological features are used to construct phylogenic trees of related species. In…

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Q: 25. Briefly explain in your own words, the significance of phylogenetic systematics in understanding…

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Q: 6 of 7 B. The ancestors of whales once had femurs and pelvises C. Whales will be able to walk on…

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Q: In order to determine polarity for different states of a character a. there must be a fossil…

A: In order to determine polarity for different states of a character;

Q: Paraphyletic groups

A: Answer: Paraphyletic is a term used in evolutionary biology to describe a group of animals which…

Q: good “phylogenetic” species is one that is A. The smallest diagnosable cluster of organisms within…

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Q: 1. Which of the following species characteristics would not put them at risk of extinction? A.…

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A:

Q: Why is the Hardy Weinberg law of equilibrium important to a study of evolutionary processes?  a. it…

A: There are some important points about Hardy Weinberg law : It is a rule that relates allelic and…

Q: Which of the following is molecularlgenetic evidence for evolution?

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Q: 1.  What role did plate tectonics play in speciation? Group of answer choices a.reshaped the…

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.