Selective Breeding

According to the text, what is artificial selection most often called?

• natural selectio

• evolution

• selective breeding

• desirable trait

Tags

NGSS.MS-LS4-5

What does the text describe?

• experiments completed to analyze the differences and similarities between animals bred for certain traits and animals not bred for certain traits

• the attitudes of different societies to selective breeding

• different examples of animals that have evolved through adaptation to their surroundings

• different examples of selective breeding and the impact of selective breeding on some animals

Tags

NGSS.MS-LS4-5

The text explains that selective breeding involves breeding animals or plants for specific desirable traits. For example, humans bred different types of dogs to accomplish certain jobs. Farmers breed chickens for having more meat and laying a greater amount of eggs. Cattle are often selectively bred either for more meat or for more milk production. The text also notes that breeding animals for size and strength interferes with natural animal processes.

Based on this information presented in the text, who benefits from the traits different animals are bred for?

• humans breeding the animals

• the animals being bred by the humans

• both the humans breeding the animals and the animals being bred by the humans

• animals not being bred by humans

The author includes examples of broiler chickens whose legs can't support their bodies and dairy cows that burn out quickly. How do these examples support the author’s statement that “selective breeding comes with both benefits and drawbacks”?

• These examples highlight the benefits.

• These examples highlight the drawbacks.

• These examples highlight both the benefits and drawbacks.

• These examples highlight the benefits of natural selection.

Tags

NGSS.MS-LS1-4

What is this passage mostly about?

• breeding for “tamability” in dogs

• the history of selective breeding from the Romans to today

• the advantages and disadvantages of selective breeding

• the problems associated with selective breeding in industrial farms

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-5

Read the following sentence: “Even though people selectively breed to yield animals with desired traits, there are dangers to selective breeding.”

What does “yield” mean as used in the text?

• to produce

• to surrender

• to endanger

• not worth much money to remove

Choose the answer that best completes the sentence below.

Temple Grandin, an animal welfare advocate, notes that breeding animals for size and strength interferes with natural animal processes. ______________, breeding roosters for muscle can make them top-heavy and unsteady on their feet, interfering with their courtship dances.

• For example

• As a result

• Most importantly

• In contrast

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-4

Give an example of a positive effect of selective breeding.

• decreased supply of milk and meat from cows

• the tame dogs we have as pets and companions• increased supply of milk and meat from cows• increased supply of eggs and meat from chickens

• decreased supply of eggs and meat from chickens

• severe health problems

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-5

Give an example of a negative effect of selective breeding

• chickens bred to lay more eggs have brittle bones since the eggs soak up the hens’ calcium supply

• increased supply of milk and meat from cows•

• increased supply of eggs and meat from chickens

• the tame dogs we have as pets and companions

Tags

NGSS.MS-LS4-4

How can the author’s view of selective breeding best be described?

• the author is totally aganist selective breeding

• the author is totally for the practice of selective breeding

• the author is cautious about the practice of selective breeding

• the author is not an advacate for selective breeding