Why did artificial selection interest Darwin? |
because he noticed certain traits being selected in animals such as livestock and pets |
Why must selected traits be heritable? |
in order for artificial or natural selection to occur |
In natural selection, what must be true of traits that are passed down through generation? |
they are only selected if they give advantages to iindividuals in the environment |
What important idea from Thomas Malthus inspired Darwin? |
resources such as food, water, and shelter were natural limits to population growth |
overproduction |
producing many offspring, some of which may not survive |
variation |
individual differences that may be heritable |
descent with modification |
a structure well-suited for the environment |
adaption |
a heritable trait becoming common in a population |
Humans are the selective agent in which type of process, artificial or natural selection? |
artificial selection |
The environment is the selective agent in which type of process, artificial or natural selection? |
natural selection |
What is the measure of the ability to survive and produce more offspring relative to other members of the population called? |
fitness |
What is the ability of a trait to be passed down from one generation to the next called? |
heritability |
What are all the individuals of a species that live in an area called? |
a population |