Define an Offspring
Product of reproduction; a new organism produced by one or more parents
Yellow beetle and green beetles live in the rainforest canopy. You would expect:
The green population of beetles will increase and the yellow population will decrease
What is artificial selection?
The process by which humans choose desirable traits during animal breeding and plant breeding.
What process is labeled as "survival of the fittest"?
Natural Selection
Which of the following is NOT a trait that has evolved in Galápagos finches?
A. Beak size and shape
B. Ability to fly
C. Diet
B. Ability to fly
Define a Favorable Trait
A trait that is beneficial to an organism and will likely be chosen by natural selection
What is most likely to happen to moth populations in the picture shown?
Dark moths are easily seen by predators and hunted easily, over time the dark moths population will decreases.
Farmers bred broccoli, cauliflower, kale, and cabbage from the wild mustard plant. What is this process called?
artificial selection or selective breeding
A farmer breeds cows with longer legs to help them run faster. This is an example of what?
Artificial Selection or Selective breeding
True or false. Mutations are not random and can be chosen by people.
False. Mutations are random
Define Genetic Variation
Differences that exist within a population or the same species
In natural selection, what is fitness?
It is the ability to survive and reproduce in the environment
Define Natural Selection
Process by which organisms with favorable traits are able to survive and reproduce better and over time become more common in the population
A species of fish evolves to have a thicker coat to survive in colder waters. This is an example of what?
Natural Selection
What would happen to a population of light-colored deer mice if they were moved to a wooded area with dark soils?
What would happen to a population of light-colored deer mice if they were moved to a wooded area with dark soils?
In an arctic environment, which would survive longer: red foxes or white foxes?
White foxes
What is an adaptative trait?
A TRAIT that helps an organism to survive and reproduce better in its environment
After traveling to the Galapagos Islands, Darwin noticed a lot of variation among beak sizes in Finches. This variation was a result of:
Developing different adaptations in order to survive on particular islands, specific to foods they eat.
Ancestors of the Galápagos finches who had large strong beaks were most likely adapted to eating?
What are seeds or hard shelled foods.
How does the environment play a role in natural selection?
It determines which traits are beneficial for survival.
What is a change in a gene that results in a new trait?
What is a mutation?
What is a change or difference in offspring called?
What is a variation?
Can an organism "CHOOSE" to evolve and change?
No, organisms CANNOT CHOOSE to change their genes or traits!
What role do mutations take during Natural Selection?
Mutations can help a species survive better in their environment and lead to adaptive traits. These traits can be passed down to offspring and over time the population changes.
A group of fish have been observed to show changes in mouth structure over many generations. What is this change a result of? Explain.
Natural selection. Fish adapting to the food source for survival.