environmental science a - unit 5 exam.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/environmental%2
Environmental Science A - Unit 5 Exam
Questions & Answers
1. what is the definition of a population?
Answer members of a species that live in onearea and interact with one another
2. which characteristics are true of a population? select all that apply.
Answer apopulation is a group of organisms from one species.
individuals in a population can breed with one another. individuals
in a population live in one geographical area together.
3. which factors cause the size of a population to increase? select all that
apply.
Answer birth rate
immigration
4. which factors affect population size but are also reversible? select all that
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,environmental science a - unit 5 exam.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/environmental%2
apply.
Answer emigration
immigration
5. which statement is the best definition of the term birth rate?
Answer XXX the numberof offspring per individual every year
try the number of individuals that produce offspring in a population over a period of
time
6. which statement best describes the term death rate?
Answer the number of deathsin a population per unit of time
7. a small town had a population of 5,000 people in the year 2010. the birth rate
that year was 3 per every 1,000 people. the death rate was 4 per every 1,000
people. two members of the population immigrated, and 20 members of the
population emigrated. using this information, what is the population size for
the year 2011?
Answer XXX 4,981
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