GRCC BI 118 Exam 2 (Answered) 100%
Verified 2025/2026.
Adaptation
________ is a series of adaptive traits obtained through natural selection
Natural Selection
__________ is the process in which individuals with certain genetic traits are more likely to survive
and reproduce under a specific set of environmental conditions.
Acclimation
_________ is a change in physiology of an individual based on adaptation
Artificial Selection
The process by which humans select one or more desirable genetic traits in the population of a plant
or animal species and then use selective breeding to produce populations containing many
individuals with the desired traits.
Humans alter the climate so fast that it doesn't give species enough time to adapt to the new
environment, causing them to die out.
Man alters the climate very quickly. How can this cause the extinction of a species?
Selective Pressure
____________ is when populations adapt in response to changes in their environment.
Insecticides
Antibiotics
Polar Bears
What are some examples of Selective Pressure?
Requires Genetic Variation
Requires Advantages for that Variation
What two factors must be present in a population for natural selection to occur?
Biome
A __________ is a terrestrial region distinguished by predominance of certain types of vegetation
and other forms of life
Temperature and Precipitation
What two factors help Shape Biomes?
Soil type
Plants
Animals
, What does Temperature and Precipitation help determine?
Tundra
Which biome has the highest amount of impact from climate change?
Tolerance Curve Model
____________ are diagrams of where a species can/can't survive and reproduce
Based on a single LIMITING FACTOR, Typically an abiotic factor
Optimal
Stress
Intolerant
What are the three zones in the Tolerance Curve Model?
Ecological Niche
The sum of all adaptations of a species to its biotic & abiotic factors
Deals with more factors
More realistic
Why is Ecological Niche Model better than Tolerance Curve Model?
Biotic Factors
Abiotic Factors
Interactions between Biotic and Abiotic
What kind of factors does the Ecological Niche Model consider?
Competitive Exclusion Principle
According to the __________, no two species can occupy the same niche due to competition among
them
Extinction
Niche Shift by Natural Selection creating Coexistence
If two species are competing there are two possible outcomes, what are they?
Niche Shift
Which two outcomes of Competitive Exclusion Principle is more common?
Habitat
________ is the place or type of ecosystem that a species lives and obtains what they need to
survive
Generalists Species
_________ are species with a broad ecological niche. They can live in many different places, eat a
variety of foods, and tolerate a wide range of environmental conditions.
Ex: Flies, Mice, Humans, Raccoons, etc.
Verified 2025/2026.
Adaptation
________ is a series of adaptive traits obtained through natural selection
Natural Selection
__________ is the process in which individuals with certain genetic traits are more likely to survive
and reproduce under a specific set of environmental conditions.
Acclimation
_________ is a change in physiology of an individual based on adaptation
Artificial Selection
The process by which humans select one or more desirable genetic traits in the population of a plant
or animal species and then use selective breeding to produce populations containing many
individuals with the desired traits.
Humans alter the climate so fast that it doesn't give species enough time to adapt to the new
environment, causing them to die out.
Man alters the climate very quickly. How can this cause the extinction of a species?
Selective Pressure
____________ is when populations adapt in response to changes in their environment.
Insecticides
Antibiotics
Polar Bears
What are some examples of Selective Pressure?
Requires Genetic Variation
Requires Advantages for that Variation
What two factors must be present in a population for natural selection to occur?
Biome
A __________ is a terrestrial region distinguished by predominance of certain types of vegetation
and other forms of life
Temperature and Precipitation
What two factors help Shape Biomes?
Soil type
Plants
Animals
, What does Temperature and Precipitation help determine?
Tundra
Which biome has the highest amount of impact from climate change?
Tolerance Curve Model
____________ are diagrams of where a species can/can't survive and reproduce
Based on a single LIMITING FACTOR, Typically an abiotic factor
Optimal
Stress
Intolerant
What are the three zones in the Tolerance Curve Model?
Ecological Niche
The sum of all adaptations of a species to its biotic & abiotic factors
Deals with more factors
More realistic
Why is Ecological Niche Model better than Tolerance Curve Model?
Biotic Factors
Abiotic Factors
Interactions between Biotic and Abiotic
What kind of factors does the Ecological Niche Model consider?
Competitive Exclusion Principle
According to the __________, no two species can occupy the same niche due to competition among
them
Extinction
Niche Shift by Natural Selection creating Coexistence
If two species are competing there are two possible outcomes, what are they?
Niche Shift
Which two outcomes of Competitive Exclusion Principle is more common?
Habitat
________ is the place or type of ecosystem that a species lives and obtains what they need to
survive
Generalists Species
_________ are species with a broad ecological niche. They can live in many different places, eat a
variety of foods, and tolerate a wide range of environmental conditions.
Ex: Flies, Mice, Humans, Raccoons, etc.
