Population Evolution Review

What is microevolution?

• Small scale changes that lead to the development of a new species

• Medium scale changes over time that lead to variation of traits in a population

• Small scale changes that lead to variation of traits in a species

• Large scale changes that lead to variation of traits in a species

What is macroevolution?

• Small scale changes that lead to the development of a new species

• Large scale changes over time that lead to variation of traits

• Small scale changes that lead to variation of traits in a species

• An accumulation of microevolutionary changes that lead to the development of a new species

Macroevolution or microevolution?

Two types of rabbits live in a snowy area, brown rabbits and white rabbits. Soon a group of foxes move into the area and hunt for rabbits. Brown rabbits are much easier to spot than white rabbits, because white rabbits can camouflage into their environment. White fur is more advantageous in this scenario, so this trait will be more prevalent in the future population.

• Macroevolution

• Microevolution

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Macroevolution or microevolution? The three major bears all share a common ancestor. Due to multiple different factors, there are now three major species of bear, the grizzly, the black bear, and the polar bear. As the bears split into different areas and lifestyles, they evolved different and unique traits. The larger grizzly and polar bears are more powerful than the black bear, to take down bigger prey such as seals and moose. The black bear evolved to be an omnivore and to be able to climb trees, allowing it to be more versatile than the other bears

• Macroevolution

• Microevolution

Which is not one of the 5 H-W assumptions?

• No mutation

• No natural selection

• Random mating

• Extremely small populations

What is the definition of genetic variation?

• Differences between individuals in their genetic composition

• Differences between individuals in their observable compoistion

• Differences between individuals in their observable traits

• Differences between people, animals, and plants

What is the definition of phenotypic variation?

• Differences between individuals in their genetic composition

• Differences between individuals in their observable compoistion

• Differences between individuals in their observable traits

• Differences between people, animals, and plants

Which type of variation is not always inherited?

• Genetic variation

• Phenotypic variation

• Allopatric variation

• Scientific variation

Genetic variation or phenotypic variation? Sadie’s natural hair is much curlier than the hair of anyone in her family.

• Genetic variation

• Phenotypic variation

Genetic variation or phenotypic variation? Steve sees an advertisement on TV for Planet Fitness and decides to get a membership. After 6 months of heavy workouts, he goes from having a slender build to being incredibly buff.

• Genetic variation

• Phenotypic variation