Env. Science Review of 2nd Nine Weeks

The smallest unit of life that can sustain itself is called...

• an organism.
• the biosphere.
• a population.
• a community.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Water temperature would be an example of ...

• a biotic factor.
• an abiotic factor.

Tags

NGSS.MS-LS2-3

Which of the following cannot introduce new alleles into a population's gene pool?

• Mutataion
• Natural selection
• Gene Flow
• All of the above introduce new alleles into the population

What is another name for natural selection?

• survival of the smartest
• survival of the fastest
• survival of the biggest
• survival of the fittest

Tags

NGSS.HS-LS4-3

NGSS.HS-LS4-4

Mutations are a change in what?

• DNA
• tRNA
• genotype
• phenotype

Tags

NGSS.MS-LS3-1

A new river forms and splits two populations, causing ______________ speciation

• Sympatric

• Allopatric

• Extreme

• Convergent

Tags

NGSS.HS-LS4-5

The ecological role an organism performs in their specific environment is considered the organism's...

• Habitat

• Population

• Biome

• Niche

Tags

NGSS.MS-LS2-2

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%
• 10%
• 100%
• 1000%

Tags

NGSS.MS-LS2-3

What is formed during primary succession that doesn't need to be formed during secondary succession?

• pioneer species
• soil
• climax community
• lichens

Areas defined by their geographical location and ecological similarity are called?

• ecozones
• biotopes
• biomes
• biodomes

Tags

NGSS.HS-LS2-2