Domestication of Organisms

How did humans likely begin the domestication of wolves?

• By choosing the most aggressive wolves to breed.

• By selecting wolves that could hunt better.

• By encouraging less aggressive wolves to stay near human camps.

• By forcing wolves to live in human homes.

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Which of the following is true about the domestication of dogs?

• Dogs were domesticated more recently than most other organisms.

• The process of dog domestication involved selecting for traits that were naturally advantageous.

• Humans selected for certain behaviors and structural features in wolves that were useful to them.

• Dogs have been domesticated only in the last 100 years.

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What role does artificial selection play in domestication?

• It ensures that only the strongest organisms survive.

• It selects organisms based on random traits without any purpose.

• It changes the probability of an organism’s offspring surviving, based on traits humans find useful.

• It prevents domesticated organisms from reproducing.

How has the domestication of dogs changed over the past 250 years?

• The number of dog breeds has decreased dramatically.

• Dogs have remained unchanged, with no new breeds.

• The number of dog breeds has rapidly increased, giving us most of the breeds we recognize today.

• Dog domestication has stopped, and there are no new breeds being developed.

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Where did corn originally come from?

• The Midwest

• Central Mexico

• Iowa

• The Amazon Rainforest

What is the ancestor of modern corn called?

• Teosinte

• Wheat

• Wild Corn

• Maize

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How long has the domestication of corn been going on?

• 100 years

• 1,000 years

• 10,000 years

• 50 years

What makes corn a "perfect plant" for selective breeding?

• It has both male and female flowers.

• It can grow without human intervention.

• It is resistant to pests.

• It can grow in any environment.

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How do modern farmers ensure that corn seeds are planted with precise spacing?

• By planting each seed by hand.

• By using GPS-guided equipment.

• By relying on weather patterns.

• By planting fewer seeds to reduce competition.

What is one of the challenges of creating a breakthrough hybrid of corn?

• Corn plants are resistant to crossbreeding.

• It takes years of work and costs a lot of money.

• Farmers have to rely on weather patterns for success.

• The seeds must be planted by hand.

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