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What else can I help you with?
How hummingbird came to have long tongues because of natural selection?
No, it is an adaption. To be more accurate it is a Structural Adaptation. Structural adaptations are adaptations that contributes to the survival of the organism. For example the arctic fox has thick coated fur to help keep warm.hope this helped : )
How would you use evolution natural selection adaptation and fitness in a sentence?
An important mechanism in evolution is natural selection, which allows populations to develop adaptations to changing circumstances based on the fitness landscape of the environment. Nah, still doesn't work. I'm no good at long sentences.
What was in the Darwin's book the Origin of Species?
One long argument with supporting evidence for the theory of evolution by natural selection. Starting with artificial selection, used as an analogue for natural selection, and ending with the distribution of animals, biogeography, Darwin showed the species arose through natural process over long lengths of time.
How is darwins theory of evolution by natural selection related to the origin of structural and physiological adaptations?
Natural selection "filters out" and selects the best or most energy efficient structures. It's a optimisation process geared towards what survives long enough to leave the most amount of viable descendants, that themselves will live long enough to produce more and so one.However, since mecanisms in modern creatures go back a long way in time, it can be the case that they are not perfectly optimal or simply that they are "piggy-backing" on something that has been selected. Evolution tries to prime and adapt what it's got, animals don't start off with whole new blueprints after wiping a species' genetic history clean.Random mutations do cause new genes and possible adaptations to occur though.
Example of how natural selection occurs?
Lets say you have two bunnies. One has a long tail, the other has short tail. The one with the long tail died because a predator was able to catch onto the long tail and eat it. Therefore, the long tailed bunny can't pass on the characteristic of a long tail and that trait is no longer seen in bunnies. However, the bunny with the short tail isn't caught by predators as easily, and as a result, passes on the trait of a short tail to its offspring. After a long amount of time, no bunnies will have long tails because all the bunnies with long tails were killed out, and as a result, can't pass on the characteristic of a long tail. Bunnies then evolve to always have short tails.
Did the theory of natural selection come before heliocentric theory?
No. Not by a long shot.
What was natural selection based on during the holocaust?
The Holocaust has nothing to do with natural selection, or vice versa. The Holocaust was the result of atrocious crimes committed under the leadership of a few madmen, inspired by a long tradition of antisemitism. Natural selection is a model that describes differential reproductive success in natural populations, under natural circumstances.
What evidence of natural selection is available today that was not available to Darwin?
Advancements in molecular biology have provided evidence of natural selection, such as detecting genetic changes in populations over time. Additionally, field experiments and long-term studies on various species have allowed researchers to directly observe natural selection in action, offering more concrete evidence than Darwin had access to in his time. Furthermore, the discovery of the fossil record and the ability to analyze ancient DNA have provided additional insights into evolutionary patterns and adaptations.
Which type of selection can result in branching evolution if it goes on long enough?
Natural selection is the type of selection that can result in a branching evolutionary tree if it goes on long enough. This is because organisms may eventually evolve into a distinct species.
What is short term evolution?
Short-term evolution refers to evolutionary changes that occur over relatively brief periods, often within a few generations. This can involve mechanisms such as natural selection, genetic drift, and mutations, leading to observable changes in populations. These changes can manifest in traits like resistance to diseases or adaptations to environmental shifts. Unlike long-term evolution, which encompasses broader patterns and speciation events over millions of years, short-term evolution focuses on rapid adaptations within existing species.
What exactly does the concept of microevolution mean?
Microevolution is the changes in allele frequencies due to mutation, natural or artificial selection, gene flow, and genetic drift. These changes occur over a long period of time within a given population.
What mechanisms must be in place in order for evolution to occur?
For evolution to occur, there must be genetic variation within a population, inheritability of these genetic traits from one generation to the next, differential survival and reproduction based on these traits (natural selection), and long periods of time for changes to accumulate across generations.
