Science Assessment ~ Items ~ EN034004

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A population is a group of individuals of the same species. Can the percent of individuals with certain traits in a population change because the environment changes?

Yes, when the environment changes, individuals in a population can change their inherited traits to better fit the environment, and this changes the percent of individuals with certain traits in that population.
Yes, when the environment changes, individuals with certain inherited traits survive and reproduce and other individuals with different inherited traits die, and this changes the percent of individuals with certain traits in a population.
No, the percent of individuals with certain inherited traits in a population changes randomly from one generation to the next, never as a result of changes to the environment.
No, the percent of individuals with certain inherited traits in a population cannot change because a population is all one species and so will always have the same inherited traits.

Details
Performance
NGSS

Topic
Correct Answer: B
Misconceptions

Pre-Test

Pre-Test

Post-Test (Control)

Post-Test (Control)

Post-Test (Treatment)

Post-Test (Treatment)

Distribution of Responses

Chart showing distrubtion of responses for Item 034004

Points Earned

Group	Correct	Total	Percent
Overall	300	559	54%
Grades
6–8	14	23	61%
9–12	265	499	53%
Gender
Male	123	221	56%
Female	159	300	53%
Primary Language
English	274	516	53%
Other	9	13	69%

View data table

Distribution of Responses

Chart showing distrubtion of responses for Item 034004

Points Earned

Group	Correct	Total	Percent
Overall	168	281	60%
Grades
6–8	10	18	56%
9–12	143	229	62%
Gender
Male	70	109	64%
Female	83	135	61%
Primary Language
English	150	243	62%
Other	5	9	56%

View data table

Distribution of Responses

Chart showing distrubtion of responses for Item 034004

Points Earned

Group	Correct	Total	Percent
Overall	217	305	71%
Grades
6–8	2	3	67%
9–12	200	280	71%
Gender
Male	99	139	71%
Female	107	150	71%
Primary Language
English	196	276	71%
Other	4	8	50%

View data table

Disciplinary Core Ideas: LS4.C Adaptation by natural selection acting over generations is one important process by which species change over time in response to changes in environmental conditions. Traits that support successful survival and reproduction in the new environment become more common; those that do not become less common. Thus, the distribution of traits in a population changes.