Natural, artificial, and genetic selection

How do species evolve

• Organism develop a trait and over their life and pass those to their offspring

• Some organisms develop a trait that they see benefits other organisms

• Some organism have beneficial traits which allow them to survive and pass traits to their offspring

• Organisms that have weaker traits seek out and breed with those

The primary difference natural and artificial selection is

• In nature selection the “pressure” comes from the environment; In artificial selection the “pressure” comes from humans (or another species).

• In artificial selection the “pressure” comes from the environment; In natural selection the “pressure” comes from humans (or another species).

• Natural selections is when humans breed the animal; Artificial selection is when humans direct genes directly.

• They are different terms for the same concept.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-5

If rubber bands suddenly replaced all other “food’ sources, what populations would be most successful?

• Spoons and clips

• Chopsticks and clips

• Spoons and forks

• Chopsticks and forks

Evidence show that all breeds of dog are the descendants of wolves. How did the huge variety of dogs arise in a few hundred years.

• Genetics modification

• Natural selection

• Random chance

• Selective breeding

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NGSS.MS-LS4-4

Why did the population of grabbers that can reach one box reach a plateau and then drop off?

• Their trait was not well suited to the environment, so the organisms were not “fit”

• The organisms’ population never reached a sustainable size.

• The other, larger, organism ate them

• There is no logical reason for their decline

Why does the population with a 2 box reach steadily decline throughout the whole recording.

• All other organism are out-competing the 2 box population

• The 2 box individuals change into organisms that have a different reach.

• The 4 box population eats the 2 box population.

• The 2 box portion is being replaced in the total population with others

What is the (sometimes controversial) process of inserting a desired gene in the genome of an organism?

• Gene splicing

• Gene cloning

• Genetic modification

• Weapon Plus Program

What is the most common vector used to deliver gene theory.

• Bacteria

• Viruses

• Fungi

• Computers

What is meant by the phrase “individuals don’t evolve”?

• Some organism don’t have the ability to evolve and all survive as they are.

• Individuals adapt, the term evolution is only used for species

• Evolution is a myth and is never observed at any level.

• Traits become more or less common within a population as a result of success, rather than individuals acquiring new traits.

Which of these is not a benefit of artificial selection.

• ]Organism can become stronger

• Breeding can be expensive

• Farmers and breeder will have better business.

• create new gene modification