Male and female fireflies produce patterns of flashes that attract mates of their own species. This is an example of...

• Temporal Isolation

• Geographical Isolation

• Behavioral Isolation

Tags

NGSS.HS-LS2-8

The formation of the Isthmus of Panama (a land bridge) created a barrier for many marine species. Marine organisms could no longer easily cross between the Atlantic and Pacific Oceans. Over time, the isolated populations became genetically different. This is an example of...

• Temporal Isolation

• Geographical Isolation

• Behavioral Isolation

Tags

NGSS.HS-LS4-4

Two tree species are very closely related. However, they have different pollination periods. The Monterey pine sheds its pollen in February, while the Bishop pine sheds its pollen in April. This is an example of...

• Temporal Isolation

• Geographical Isolation

• Behavioral Isolation

Two species of lizards live on opposite sides of a newly formed mountain range, each adapted to the unique climate and vegetation on their side. What is this an example of?

• Allopatric Speciation

• Sympatric Speciation

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

In a lake, two fish species coexist, one specializing in feeding on the bottom while the other preys on smaller fish in open water. What is this an example of?

• Allopatric Speciation

• Sympatric Speciation

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

In a cave system, different populations of the same blind beetle species adapt to varying levels of darkness, exhibiting subtle differences in leg length and antenna size. What is this an example of?

• Allopatric Speciation

• Sympatric Speciation

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

In a diverse population of wildflowers, pollinators visit blossoms of all colors with equal frequency. What is this an example of?

• Assortative Selection

• Disassortative Selection

Tags

NGSS.HS-LS4-4

In a population of lizards living in a diverse environment, individuals with either very large or very small mouth sizes survive and reproduce more often, while those with intermediate mouth sizes struggle to find food.

• Directional Selection

• Stabilizing Selection

• Disruptive Selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

1. Over time, the average body temperature of a mammal species living in a gradually cooling climate slowly decreases.

• Directional Selection

• Stabilizing Selection

• Disruptive Selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-3

NGSS.HS-LS4-4

1. The average lifespan of elephants in a population remains relatively constant over generations as individuals with extreme lifespans (very short or very long) leave fewer offspring.

• Directional Selection

• Stabilizing Selection

• Disruptive Selection

Tags

NGSS.HS-LS4-2