Natural Selection Review

Millionaire Game

Question #1

• Which is the best example of how science & improvements in technology affect life?

A. A birdwatcher feeds seeds to birds.

B. A person plants a garden in her backyard.

C. A student watches a snake eat a mouse.

D. A dairy farmer breeds cows to produce more milk

Answer #1

D. A dairy farmer breeds cows to produce more milk

Question #2

What makes an organism biologically successful?

A. It is the strongest B. It makes the most money.

C. It eats the most food. D. It has offspring.

Answer #2

D. It has offspring.

Question #3Which of the following is NOT an example of evidence that Darwin and other scientists found to create the Theory of Evolution?

A. The fact that humans came directly from monkeys. B. Similarities in different species body structures. C. Examination of Fossil evidence. D. DNA of different species are very similiar.

Answer #3

A. The fact that humans came directly from monkeys. (Humans DID NOT evolve from monkeys. Monkeys and humans are related, but so are humans and whales)

Question #4

Which of the following is NOT one of the four factors that affect Natural Selection?

A. Overproduction B. Genetic Engineering C. Survival and Reproduction D. Competition and Selection

Answer #4

B. Genetic Engineering (Genetic Engineering is done by humans, not

nature)

Question #5• In the early 1800s, Jean-Baptiste

Lamarck described how giraffes developed such long necks. He explained that a giraffe’s neck grew longer as she stretched to reach leaves high in trees. The giraffe then passed on her longer neck to her offspring, so the next generation had longer necks than the generation before. Since that time, we have learned more about how traits are passed from parent to offspring.Which statement best evaluates Lamarck’s ideas using current science knowledge?

• A. Neck length is an inherited trait and can be changed by the giraffe’s behavior, so Lamarck’s ideas are valid.

• B. Neck length is an inherited trait and cannot be changed by the giraffe’s behavior, so Lamarck’s ideas are not valid.

• C. Neck length is an acquired trait, so giraffes’ necks will be different lengths depending on the time of year they are born.

• D. Neck length is an acquired trait, so giraffes’ necks will change as they age

Answer #5• B. Neck length is an inherited

trait and cannot be changed by the giraffe’s behavior, so Lamarck’s ideas are not valid.

Question #6Many animals that live near the North Pole are white. Why is being white a helpful inherited trait for the North Pole environment?

A. white absorbs more heat B. white camouflages in with the

surroundings C. white reflects sunlight D. white helps animals to move faster

Answer #6

B. white camouflages in with the surroundings

Question #7Some organisms have colorful appearances to warn their predators that they are harmful or do not taste good. If other organisms mimic these colors in areas where the predator is not exposed to the original organisms, how successful would the mimics be in survival?

A. They would be successful because predators are always afraid of colorful organisms

B. They will be successful because predators are colorblind and will not see them

C. They will not be successful because predators avoid eating others only after an original harmful or distasteful experience

D. They will not be successful because predators only avoid eating others after their original harmful experience kills them

Answer #7

C. They will not be successful because predators avoid eating others only after an original harmful or distasteful experience

Question #8Birds in a desert climate survive on soft parts of cactus. Scientists observed that during a drought, many of the birds died. The ones that survived had larger beaks and were able to crack open and eat hard seeds that would ordinarily not be used. The next generation of birds all had large beaks.

How did inherited traits help some birds survive?

A. all surviving birds migrated

B. inherited traits helped birds get water

C. inherited traits helped birds change foods

D. the inherited traits changed the environment

Answer #8

C. inherited traits helped birds change foods

Question #9

King Snakes are mimics of the very dangerous Coral Snake. If they were released into Northern Utah, where there are no Coral Snakes, how successful would the King Snake be?

A. Very Successful. They would scare their predators away by looking like a Coral Snake.

B. Very Successful. They do not need to hide from predators because they are snakes.

C. Not Successful. They would not be able to live without the Coral Snake helping it hunt.

D. Not Successful. Its predators would not be scared of its bright stripes.

Answer #9

D. Not Successful. Its predators would not be scared of its bright stripes.

Question #10Students were asked to pretend they were birds using their beaks to eat. Their beaks were writing utensils and their food were paperclips. Students that had mechanical pencils survived the eating season more often than those with pens. How does this relate to Darwin's theory of Natural Selection?A. The beak that a bird is born with can help it to survive in its environment. B. Birds beaks are like pencils, not like pens. C. Bird survival is only dependant on the length of the feeding season. D. A Bird species can adapt to their environment in one generation.

Answer #10

A. The beak that a bird is born with can help it to survive

in its environment.

Question #11

Which is the best example of how science & improvements in technology affect life?

A. Some bacteria can cause life-threatening diseases in humans.

B. Human genetic material is inserted into bacteria to produce human insulin.

C. A rabbit grows white fur in the winter for camouflage.

D. The wind blows wing-shaped seeds to more fertile soil.

Answer #11

B. Human genetic material is inserted into bacteria to produce human insulin.

Question #12

Given the data table above, which is the best display to summarize the data?

Answer #12

D. Data from question:

Question #13

Students dropped different colored toothpicks in lawn grass. They were given one minute to pick up as many toothpicks as they could. Students found that they had more red and blue toothpicks than green.

Ecologists observed that the Varying hares (rabbits) fur is brown in the summer and white in winter. They found that the population remained about the same in winter and summer.

What advantage does the model presented in the classroom have over the natural setting?

A. It shows how easily people would find animals of different colors B. It is more accurate because classroom models better represent nature than nature itself C. It is easier to calculate the results because of the controlled environment D. It bears no advantage over the natural testing environment

Answer #13

C. It is easier to calculate the results because of the controlled environment

Question #14Your mother sends you to the store to buy some tomatoes. You notice when you get there that there are several choices to make. Among those choices you notice a sign that announces a new genetically altered tomato that resists "rotting," "stays firmer longer" and has a "longer shelf life." What are the benefits of this genetic engineering?A. The tomato is a brighter color. B. This tomato will last longer on grocery shelves. C. This tomato will be better adapted to survive in nature. D. This tomato has more nutrients for humans. (ie. is better for you.)

Answer #14

B. This tomato will last longer on grocery shelves.

Question #15Students dropped different colored toothpicks in lawn grass. They were given one minute to pick up as many toothpicks as they could. Students found that they had more red and blue toothpicks than green.

Ecologists observed that the Varying hares (rabbits) fur is brown in the summer and white in winter. They found that the population remained about the same in winter and summer.

According to these investigations, how does color affect organisms?A. It helps them find communities to live in B. It helps them stand out from their surroundings C. It helps them find more food D. It helps them escape predators

Answer #15

D. It helps them escape predators

Question #16

Turtles lay more eggs than they need for species survival. Why do they lay so many eggs?A. They want that many offspring to survive and reproduce. B. They need to overproduce offspring in order to allow some to die and only the strongest to survive and reproduce. C. They want to make food for birds.

D. They know that some of their offspring will have mutations.

Answer #16

B. They need to overproduce offspring in order to allow some to die and only the strongest to survive and reproduce.

Question #17What is the difference between Selective Breeding and Natural Selection? A. Selective breeding allows humans to choose the best traits for a species and Natural Selection does not. B. Natural Selection is human caused and Selective breeding happens in nature. C. Natural Selection is when organisms that are better adapted survive and Selective Breeding is when humans choose desirable traits. D. They are both the same, there is no difference.

Answer #17

C. Natural Selection is when organisms that are better adapted survive and Selective Breeding is when humans choose desirable traits.

Question #18

A 7th grade science student travels to a rainforest and observes the leaves of jungle plants. He then travels to a desert and observes leaves on native plants there. He concludes that large, flat leaves give plants in the jungle an advantage, and plants in the desert do better if they have small leaves. Which statement best describes the student’s conclusion?

A. It is a bad conclusion because people that lived in those environments planted the plants that they wanted.

B. It is a bad conclusion because plants can't change in order to live in different environments.

C. It is a good conclusion because the plants adapted to the environments that they live in.

D. It is a good conclusion because plants can't change in order to live in different environments

Answer #18

C. It is a good conclusion because the plants adapted to theenvironments that they live in.

Question #19

Read the passage.Which of the underlined statements is the best example of science and technology affecting life?

A. 1 B. 2 C. 3 D. 4

Answer #19

C. 3

Question #20Students made a model ecosystem on their school lawn. They dropped equal numbers of different colored toothpicks in the grass to represent insects. They were given one minute to pick up as many toothpicks as they could. They picked up more red and blue toothpicks than green. How is this model different from nature?

A. It represents natural camouflage.

B. It demonstrates the relationship between insects and their predators.

C. There are some variables acting in nature not demonstrated in this activity.

D. The colored toothpicks represent the camouflage in insect wings and bodies.

Answer #20

C. There are some variables acting in nature not demonstrated in this activity.

Question #21The human genetic material for insulin (a chemical that helps our bodies use sugar) is inserted into bacteria cells. The bacteria then produce human insulin, which is harvested and given to people with diabetes. How does genetic engineering help humans?A. It helps us to grow more bacteria. B. It helps us to selectively breed for new traits. C. It helps us to learn about about Natural Selection. D. It helps us to create new medicines to treat diseases.

Answer #21

D. It helps us to create new medicines to treat

diseases.

Question #22Students made a model ecosystem on their school lawn. They dropped equal numbers of different colored toothpicks in the grass to represent insects. They were given one minute to pick up as many toothpicks as they could. They picked up more red and blue toothpicks than green. How does this model represent nature?

A. The green toothpicks represent camouflage in insects.

B. This model is as accurate as real life.

C. The model is on the same scale as nature

D. The model shows that most insects live in grasses.

Answer #22

A. The green toothpicks represent camouflage in insects.