Darwin argued that natural selection would never cause a trait to evolve in one species that...

Darwin argued that natural selection would never cause a trait to evolve in one species that benefitted another species at a fitness expense to the first species. A study of egrets in Florida found that parents eject some of their own chicks from the next. This behavior feeds alligators living in the swamps below the nests. The steady supply of food improves the health and condition of the alligators. In view of Darwin’s logic, what are two hypotheses that might explain why the egrets perform behaviors that benefit alligators?

Expert Solution

gladiator answered 2 years ago

Darwin was not the first one to propose that living organisms evolve. What Charles Darwin did...

Darwin was not the first one to propose that living organisms evolve. What Charles Darwin did was to propose a mechanism that explains how evolution occurs, which he called Natural Selection. In less than 200 words, summarize what Natural Selection is.

Describe the mechanism and process of natural selection and how Darwin used it to explain the...

Describe the mechanism and process of natural selection and how Darwin used it to explain the diversity seen in his theory of common descent.

As Darwin was developing his Theory of Natural Selection, how did the breeding of animals, such...

As Darwin was developing his Theory of Natural Selection, how did the breeding of animals, such as dogs and pigeons (Darwin actually bred pigeons) help him create his theory?

Portions of the genome that aren’t subject to natural selection can be assumed to evolve neutrally....

Portions of the genome that aren’t subject to natural selection can be assumed to evolve neutrally. These parts of the genome can be used to _____________. Estimate divergence time for two species (molecular clock). Find instances of epistatic conflict. Estimate the impact of parasitism on the population. Determine diversity of phenotype. A mutation results in a duplicated copy of a gene. The original gene and the duplicated version are descended from the same ancestral gene and are referred to as...

Explain how the trait is an advantage to the organism and how natural selection occurs.

What does Darwin mean when he says that natural selection will change the structure of the...

What does Darwin mean when he says that natural selection will change the structure of the young in relation to the parent, and of the parent in relation to their young? Is this talking about social features of an animal? -Based on Darwin, The Origin of Species

Determine the most likely reason why natural selection may cause prezygotic reproductive isolating mechanisms to evolve if postzygotic reproductive isolating mechanisms are already present

Determine the most likely reason why natural selection may cause prezygotic reproductive isolating mechanisms to evolve if postzygotic reproductive isolating mechanisms are already present, but natural selection can never cause the evolution of postzygotic reproductive isolating mechanisms. Natural selection may lead to the evolution of prezygotic reproductive isolation in organisms that already have postzygotic isolation to prevent wasted reproductive effort. Prezygotic isolation can evolve if postzygotic isolation has generated genetic variation during earlier periods of anagenesis. If postzygotic isolation is present, then natural...

1 a. Does natural selection cause mutations? Does evolution cause mutations? 1b.Mutation in and of itself...

1 a. Does natural selection cause mutations? Does evolution cause mutations? 1b.Mutation in and of itself is not evolution. What must happen for evolution to occur? 1 c. Give an example in which the relative fitness of a heterozygote is greater than the relative fitness of either of the homozygotes.

1. Darwin compares natural selection to a country undergoing some form of climate change. How does...

1. Darwin compares natural selection to a country undergoing some form of climate change. How does he say that such an example and climate change are similar?

Describe a specific example where natural selection is likely to have produced a specific trait, feature...

Describe a specific example where natural selection is likely to have produced a specific trait, feature or behaviour. In your example make sure you use the 3 principles of natural selection which are principle of variation, principle of inheritance, and principle of adoption.

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