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What is adaptation and how is it related to natural selection?
Adaptation is changes in the overall physiological makeup of a population of organisms that bestow increased reproductive fitness on the population. Natural selection causes adaptation by favouring variants with increased reproductive fitness over less reproductively successful variants.
How is biological fitness measured?
Biological fitness is typically measured by an organism's ability to survive and reproduce. This can be quantified by factors such as the number of offspring produced, survival rate, and ability to pass on genes to future generations. Fitness can also be assessed in terms of adaptations that enhance an organism's ability to thrive in its environment.
What component of fitness can lead to a decrease in resting heart rate?
Cardiovascular fitness can lead to a decrease in resting heart rate.
How do parasites serve as a density-dependent limiting factors?
Parasites can limit the growth of a population. They take nourishment from their hosts, often weakening them and causing disease or death. As the population of parasites grow, the population of their hosts tend to decrease.
What is the population of Celebrity Fitness?
Celebrity Fitness's population is 2,000.
What is the population of Equinox Fitness?
Equinox Fitness's population is 2,009.
What is American Family Fitness's population?
American Family Fitness's population is 1,050.
What is the population of Bally Total Fitness?
The population of Bally Total Fitness is 2,007.
What two factors are required for a character or trait to change over time in population which is adapting through natural selection?
Variation in the trait within the population and differential reproductive success based on that trait are required for a character or trait to change over time in a population adapting through natural selection. The individuals with traits that confer a reproductive advantage are more likely to survive and pass on their genes to the next generation, leading to an increase in the frequency of those traits in the population over time.
Does natural selection increase or decrease variation in a population?
Natural selection tends to decrease variation in a population by favoring certain traits that are better suited for survival and reproduction. As individuals with advantageous traits have higher fitness, their genes are passed on more frequently, reducing the frequency of less beneficial traits in the population over time.
What is a situation in which allele frequencies remain constant?
Equal fitness in a population
What are organisms that are not well adapted?
Organisms that are not well adapted may struggle to survive and reproduce in their environment. This can result in low fitness, decreased reproductive success, and ultimately may lead to population decline or extinction. Factors that contribute to poor adaptation can include changes in the environment or competition from other species.
