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SCI 8 Unit 6 - Pt. 1
Natural Selection
Question | Answer |
---|---|
What is a group of the same type of organism living in the same area? | Population |
What is the process by which the distribution of traits in a population changes over many generations? | Natural Selection |
(Fill in the blanks) A population can be described by the ______________ present and by the number of individuals who have each _________________. | Traits ; Traits |
What is the number of individuals with each trait in a population called? | Distribution |
What determines if a trait is adaptive? | The environment |
On a histogram, what is represented by the width of the histogram? (Hint: Any difference in traits between individual organisms) | Variation |
Fill in the blank: The traits that exists in a population determine which traits can become more ____________ over many generations. | Common |
Fill in the blanks: A trait is Non-Adaptive if it makes it _________ likely that an individual will ____________ in a specific environment. | Less ; Survive OR More ; Die |
What determines an organism’s traits? | Parents OR Protein molecules |
Individuals with adaptive traits are more likely to do what two things? (Based on lesson 2.3 & 2.4) | Live longer ; reproduce more |
What vocabulary term is a trait that makes it more likely an individual will survive in a specific environment? (2 words) | Adaptive Trait |
What is a specific characteristic of an individual organism? | Trait |
What is everything (living and nonliving) that surrounds an organism? | Environment |
What is a random change to a green that sometimes results in a new trait? | Mutation |