Evolution

Which radioactive element is most likely used to date once living things?

• Uranium
• Nitrogen-14
• Carbon-14

Which is the most accurate method of dating fossils?

• radioactive
• relative
• studying layers in the earth

Which method determines a fossil's approximate age by examining which layer of earth is is found in?

• radioactive
• relative
• chemical

Tags

NGSS.MS-ESS1-4

Evolution typically happens...

• in a few weeks
• over millions of years
• never
• in 100 years

Tags

NGSS.MS-LS4-4

Bird's beaks evolve mainly due to the type of ___________________ available.

• food
• water
• shrubs
• mates

Tags

NGSS.MS-LS2-1

If an organism can't adapt fast enough, this might happen.

• hibernate
• stay the same
• live longer
• become extinct

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Guppies are small fish that live in South American rivers. They can have different- sized spots on their bodies.

The river bottoms are covered in rocks. Guppies with spots that are the same size as the rocks on the bottom are harder for bigger fish to see and catch.

The diagram below shows a population of guppies that live in a river. At time 1, the population had the same number of guppies with small and large spots. At time 2, after many generations, there were many more guppies with small spots and fewer guppies with large spots in the population.

How did the environment change between time 1 and time 2? How did the population change?

• You cannot tell how the environment changed. With each generation, more guppies passed on the gene for small spots to their offspring.

• The rocks became smaller. With each generation, more guppies with small spots survived long enough to pass on the gene for small spots to their offspring.

• The rocks became smaller. Guppies with small spots are more likely to survive, so the guppies with large spots changed to have small spots.

• The rocks became smaller. Guppies with small spots are more likely to survive, so both kinds of guppies passed on the gene for small spots to their offspring.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What is the process where animals live or die based on their adaptations to their environment.

• Genetic Drift

• Natural Selection

• The Circle of Life

• Mammoth

Tags

NGSS.MS-LS4-4

Which word describes the word "variation"?

• Adaptations

• Differences

• Traits

• Genetics

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

When an organism of a species has an adaptation, it will compete for resources better, survive longer and pass that adaptation on to it's offspring. This process is called

• evolution by natural selection
• artificial selection
• inbreeding
• outbreeding

Tags

NGSS.MS-LS4-4