The minnow is found in open streams and has excellent eyesight. The cave fish is found in dark, cave streams. It is blind and has reduced, non-functioning eye parts.
What has become the most important adaptation of the cave fish?
Detecting Vibrations
Blind cave fish compensate for their lack of sight by having a more sensitive lateral line system which detects vibrations or changes in pressure in the water. The lateral line is a specialized sensory organ found in fish.
Which are examples of homologous structures?
An example of homologous structures are the limbs of humans, cats, whales, and bats. Regardless of whether it is an arm, leg, flipper or wing, these structures are built upon the same bone structure. Homologies are the result of divergent evolution.
How are homologous structures evidence of evolution?
Why are homologous structures evidence for evolution? Because they confirm the claim of descent with modification. Homologous structures only make sense if seen as having evolved from a shared ancestor which diverged, over evolutionary time to form several related descendant species.
What is the difference between cave fish and minnow? – Related Questions
What are the 5 evidences of evolution * Your answer?
Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.
What are the 5 examples for evidence of evolution?
There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.
How do homologous structures give evidence for evolution quizlet?
How do homologous structures provide evidence for evolution? Homologous structures show that a certain species of animals is related to other species through common ancestors by having similar structures in their bodies.
Why do homologous structures provide evidence of divergent evolution?
Answer and Explanation: Homologous structures are evidence for divergent evolution because, although the structures are very similar, they can function very differently in each species.
What are the examples of divergent evolution?
In divergent evolution, two or more distinct species share a common ancestor from which they diverged. A common example is a modern elephant and woolly mammoth. They share a common ancestor and yet evolved into two different species. Another example is the dog, the wolf, and the fox.
What types of structures would likely be examples of divergent evolution?
In divergent evolution, homologous structures are structures indicating a species is diverging from its ancestor. These structures need not have the same function as those of the species’ ancestors. For example, the forelimbs of humans and bats are homologous structures.
What is divergent evolution and how does it lead to appearance of homologous traits?
Divergent evolution means that, by comparing similar traits in two species (called homologous traits), we can trace back species histories to common ancestors. Some impressive examples of this exist in nature, such as the number of bones in most mammalian species.
What is convergent and divergent evolution with examples?
Speciation is a result of divergent evolution and occurs when one species diverges into multiple descendant species. Darwin’s finches are an example of this. Convergent evolution occurs when species have different ancestral origins but have developed similar features.
What is convergent and divergent adaptation?
1. Due to adaptation when a species evolves similarities in their function and characteristics is considered as convergent evolution. In divergent evolution, an ancestral species diverges into many different species and finally produces a new species. 2.
What causes divergent evolution give an example?
What Is Divergent Evolution? Divergent evolution occurs when a population of animals or plants is split into two groups by a geographic barrier (for instance, a body of water or a migration to a new area), causing each group to develop different traits under their respective selective pressures and natural selection.
What are 3 examples of convergent evolution?
Some Other Examples of Convergent Evolution
The evolution of complex eyes in vertebrates, cephalopods (squid and octopus) and arthropods (crustaceans, insects and spiders). Streamlined body shape of dolphins, sharks and (extinct) ichthyosaurs. The evolution of echolocation in whales and bats.
What are some examples of convergent evolution?
Examples of convergent evolution include the relationship between bat and insect wings, shark and dolphin bodies, and vertebrate and cephalopod eyes. Analogous structures arise from convergent evolution, but homologous structures do not.
How do you know if its convergent or divergent evolution?
Convergent vs Divergent Evolution
Convergent evolution is when two species with different ancestral origins develop similar characteristics, while divergent evolution refers to when two species diverge from a common ancestor and develop different characteristics.
What is difference of convergent and divergent?
Divergence generally means two things are moving apart while convergence implies that two forces are moving together.
What is divergent evolution Short answer?
Divergent evolution is commonly defined as what occurs when two groups of the same species evolve different traits within those groups in order to accommodate for differing environmental and social pressures.