identify whether or not the following structures are convergent traits.

Mutation d acquired characteristics 106. QUESTION 1 Convergent evolution is A.

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The evolution of similar traits in distantly related lineages through natural selection B.

. By studying the anatomy of a trait in living organisms and in fossils and by observing how the trait changes as an organism grows and develops biologists can usually find out if a structure in. Just because they look and act alike does not mean they are related. The wings of bats and the wings of insects are evolved from completely different original structures. A structural unit with rows and columns in a popular database model.

An item used to identify records uniquely. Since sugar gliders and flying squirrels are very distantly related it is unlikely that their common ancestor had flaps of skin stretched between its legs and that both modern animals inherited the trait from. Cactus spine and leave trees. AnsConvergent evolution-- aFlippers of dolphins and fins of fish b View the full answer Transcribed image text.

Some biological characteristics are analogous also called convergent which means that they serve the same function in different species but they evolved independently rather than from the same embryological material or from the same structures in a common ancestor. For instance some South American and African. Tailbone of humans and tail of dogs. Parallelism or parallel evolution is a similar evolutionary development in different species lines after divergence from a common ancestor that did not have the characteristic but did have an initial anatomical feature that led to it.

A system to guard against database errors due to performing transactions concurrently. Functionally similar features that have arisen through convergent evolution are analogous whereas homologous structures or traits have a common origin but can have dissimilar functions. Identify whether or not the following structures are. Sometimes a phylogeny is used to help determine if a trait is or is not homologous.

Was produced by physical processes soon after the Earth was formed c. Bird bat and pterosaur wings are analogous structures but their forelimbs are homologous sharing an ancestral state despite serving different functions. Long snout of egg-laying echidna and placental giant anteater. True roots and root-like stems of plants.

These similar structures are called analogous structures. Another example of convergent evolution is the body shape of dolphins and sharks. Has always been present at the same concentration b. In evolutionary biology convergent evolution is the process whereby organisms not closely related not monophyletic independently evolve similar.

Though dolphins and sharks. The evolution of similar traits in closely related This problem has been solved. This ensures that scientists reasoning is. If these species come from different biological ancestors yet still have much in common their similarities may be the result of convergent evolution.

Thus the convergent evolution causes similar structures in different lineages of organisms. Nonhomologous structures can result. 1 Identify the above human structures as to whether they are homologous analogous or vestigial structures. Homologies are traits inherited from a common ancestor.

2 Discuss in your group and predict why these structures are not essential to humans. An example of an analogous structure would be the wings on butterflies bats and. Having a streamlined body shape fin and flippers allows aquatic animals to swim faster. Homoplastic structures can be the result of parallelism convergence or mere chance.

Flippers of dolphins and fins of fish. However this phylogeny is based on other traits not the trait in question. Analogy or analogous structures is actually the one that does not indicate there is a recent common ancestor between two organisms. A only from convergent evolution b from either convergent or parallel evolution c neither of the above.

Webbed feet of ducks and otters. This is definitely a tricky one. This means that sharks and dolphins similarities body shape fin and flippers are convergent traits that each lineage evolved independently. A means of locating a particular record within a file.

Convergent Evolution Explained With Examples - 2021 - MasterClass. Long snout of egg-lauing enchidna and placental giant anteater Flippers of Doplhins and fins of fish Webbed feet of ducks and otters true roots and root-like stems rhizomes of plants Not convergent evolution Cactus spine and tree leaf Tailbone of human and tail of dogs wings of bats and flippers of whales. Scientists dont always start with anatomy in determining if two structures are homologous. Oxygen in the atmosphere a.

Two species occupying a similar habitat may exhibit common physical traits. Was produced by biological processes after the evolution of life d. However these criteria are nonetheless useful. They are examples of a.

The wings of sugar gliders and flying squirrels are convergent traits not homologies. See some hints Hint 1. The following traits are no longer essential for humans. Wings of bats and flippers of whales.

Even though the anatomical structures being studied look similar and maybe even perform the same functions they are actually a product of convergent evolution.

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