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#Rocket pocket mouse answer key skin

Predators eat light-colored rock pocket mice.Ĥ.They have a genetic mutation that affects their fur color.There is dark lava rock in the area where they live.Individuals change color to blend in with the environment.Why did dark-colored rock pocket mice first appear in a population of light-colored rock pocket mice? Predators of the pocket mice hunt using what sense?ģ. How caused the unusual landscape at the Valley of Fire?Ģ. Watch the video at /rockpock and answer the questions.ġ. What are the two types of substrate that these mice live on? _.Arrange the cards in what you think is the correct order from the oldest to the most recent.Location B: Number of mice with light-colored fur _ Dark-colored fur _

Location A: Number of mice with light-colored fur _ Dark-colored fur _ View the images of the rock pocket mouse populations in each location and record the numbers for each color.The survival and reproductive success of an individual is directly related to how their traits help them to function and survive in their environment.\) Mutations are random, but natural selection is not random. Is evolution a random process? Evolution is not a random process.Evolution repeats itself in different environments. Different mutations can cause the same phenotype (trait). Did the mice on each of the dark lava flows have the same mutation? No.Mutations that increase the chance of survival of an organism can become much more common in a population. A small advantage can lead to big changes in the population very quickly. How do you get a population of dark colored mice? In dark environments, the dark colored mice have an advantage they survive better and have more offspring.(Darker fur is favorable in the dark environment and harmful in the light.) Mutations are favored, rejected, or neutral depending upon an organism’s environment. How does a dark mouse appear in a population of light mice? Gene mutations cause the darker mice.

The environment “selects” those individuals with the most favorable traits to survive and reproduce. What causes the overall differences in mouse fur color (big picture)? The differences in mouse fur color are caused by natural selection.The mice’s underbellies are white because there’s no selective pressure for it to be dark the predators come from above so it doesn’t matter what color the bellies are.

Why do the pocket mice in the dark lava environment have dark fur on top and white underbellies? The d arker fur on the top of their bodies provides camouflage so predators won’t see them.

Speciation : The evolution of a new species from an existing species.Īfter you define these terms, click HERE and watch the video clip about the rock pocket mouse.

Adaptation: a trait or behavior in a species population that makes it better suited to its environment.

#Rocket pocket mouse answer key skin

Trait: a genetically determined characteristic passed on from parents to offspring (hair color, eye color, skin color).

Evolution: Gradual c hanges in traits in a species population from one generation to the next and the evolution of different species from a common ancestor over many generations.

Variation: Members of the same species population with different traits.

A mutation could change the traits in the organism.

Mutation: A gene mutation is a permanent change in the DNA sequence that makes up a gene.

Natural selection: The process in nature by which organisms with traits that help them survive, reproduce more and pass on those traits to their offspring.

Population: All of the individuals of the same species that live in a particular area.