BIOL 1503 Chapter : Evolutiondefinitions

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azuremammoth471

15 Mar 2019

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The number of offspring left in succeeding generations to leave offspring that express particular traits and not others. A change in the number, arrangement, or molecular sequence of a gene. Differences between and among individuals that are genetically determined and expressed in form and/or behavior. The process by which some individuals of a given population are successful in leaving offspring and others are less so or not at all. A group of interbreeding individuals of the same species living in the same geographic area at the same time. If modification by descent: successful, the species become specialized for the new environments (the mechanism being natural selection), and they eventually evolve into different species. Offspring produced by breeding plants or animals of different varieties, breeds, or species. A change in the genetic makeup of a population over generational time. The physical and/or behavioral expression of a trait genotypes in the population.

Related Questions

1. Traits don't necessarily have to be passed on from parent to offspring for natural selection to act on them; traits that are environmentally acquired during the life time of an individual (such as practicing to become very strong or very fast) can also be acted upon by natural selection. Select one: True or False

2.Within the same species and even within the same population, not all individuals are the same. They vary in size, shape or other traits.

Select one:

True

False

3.Differential reproductive success means that some individuals in a population leave more offspring that survive and reproduce relative to other individuals in a population.

Select one:

True

False

coraldolphin670

What set Darwin and Wallace's concept of natural selection apart from earlier ideas of evolution?

A) All of the above

B) Their concept suggested that life forms change over time, whereas earlier ones did not

C) Their concept included the idea that traits are passed on to offspring, whereas earlier ones did not

D) Their concept depended on a process by which differences in phenotypic traits cause some individuals to be more "fit" than others, depending on the environmental circumstances

1. How do bacteria acquire genetic variation and how does thatdiffer from the mechanism by which humans acquire variation?

2. Be able to explain why the following statement is true:Natural Selection works on individuals while evolution works onpopulations over generations. Or to put it another way: Individualsdo not evolve, populations do.

3. How can evolution explain the formation of complex structuressuch as the eye or the flagella motor?

4. What causes variation in a species? To put this another way:all humans have the same genes, yet we do not look alike. What isthe reason for the phenotypic differences between individuals ofthe same species? What is genetic recombination?

lavenderbadger893

BIOL 1503 Chapter : Evolutiondefinitions

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