Vocab
The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution
What is Natural Selection
The theory that states that life on Earth gradually developed from simple to more-complex organisms
What is Scientific Theory of Evolution by Natural Selection
____ proposed natural selection as a mechanism for evolution.
Who is Darwin
process by which organisms in a population that are best adapted to the environment increase in frequency relative to less well-adapted organisms over a number of generations.
What is Natural Selection
describe the conditions required for natural selection that result in differential reproductive success, including: overproduction of offspring, inherited variation, variation in fitness, and the struggle to survive.
What are overproduction of offspring, inherited variation, and the struggle to survive
overproduction of offspring leads to __ for survival
What is competition?
A measurement of the ability of a species to respond to the pressures of natural selection; the ability of individuals to survive to propagate their genes
What is Fitness
the heritable differences that exist in every population are the basis for natural selection
What is Variation
There are four conditions required for natural selection to occur; reproduction, heredity, variation in fitness or organisms and variation in characteristics.
What are the CONDITIONS REQUIRED FOR NATURAL SELECTION
explain the concept of adaptation.
What is the biological mechanism by which organisms adjust to new environments or to changes in their current environment.
when a population's becomes very quickly. This is usually due to a catastrophic environmental event, hunting a species to near extinction, or habitat
What is Bottleneck
The process of becoming adapted to an environment; an anatomical, physiological, or behavioral change that improves a population's ability to survive
What is Adaptation
In order for natural selection to act on a given population, that population must reproduce to create a new generation.
What is Reproduction
describe the steps by which a population of insects becomes resistant to a pesticide.
what is Upon exposure to insecticides, insects that do not carry the resistance genes die, thus allowing the individuals with the resistance genes to survive and reproduce, creating more resistant insects.
a process that can lead to changes in populations over a short period of time.
What is Genetic drift
In biology, the ability of an organism to tolerate a chemical or disease-causing agent
What is Resistance
Heredity works hand-in-hand with reproduction as the traits of the parents have to be passed down to the offspring.
What is Heredity?
discuss and explain why the statement is an example of overproduction of offspring, inherited variation or struggle to survive
what are Many species create many more offspring than there are resources like food, water, and living space to support them.
heritability of adaptations. More individuals will have the trait in every following generation, as long as the environmental conditions remain beneficial for the trait.
What is Descent with modifications
The selective breeding of organisms (by humans) for specific desirable characteristics
What is Artificial Selection
is the ability of an organism to survive and reproduce as much as possible / levels of fitness in members of a population is a prerequisite for natural selection to occur
What is Variation in Fitness
discuss why insect population become resistant to pesticides (chemicals)
What are the Genetics and intensive application of insecticides are responsible for the rapid development of resistance in many insects and mites.