PSAT 8/9 Writing and Language Practice Test 3: Gause's Law

principles, this includes competition, in which

competition principles, in which

principles, competition, and

principles, including competition, in which

Yes, because it elaborates on a concept and clarifies the connection between competition and extinction.

Yes, because it explains the significance of Gause's research.

No, because it provides information that is unrelated to the paragraph's main idea.

No, because it contradicts information given earlier in the paragraph.

NO CHANGE

the first to prove the validity of the principle of competitive exclusion, in 1932.

later awarded a prize for his life-saving work on antibiotic medications.

an ecologist who published a number of influential books.

NO CHANGE

nicely

amazingly

wonderfully

where it is now.

after sentence 1.

after sentence 2.

after sentence 5.

NO CHANGE

Gause's results confirmed the theory.

It is important for scientific experiments to contain control groups.

Gause eventually published his results in a book.

NO CHANGE

both species continued to grow at the same rate:

Gause saw a difference in the populations emerge:

Gause decided to do more experiments:

NO CHANGE

never containing more than 5 cells.

going extinct in fewer than 10 days.

eventually being eliminated entirely from the sample.

Yes, because it shows that Gause's scientific research was trustworthy.

Yes, because it helps the reader understand the passage's main points.

No, because it contradicts the author's claim about Gause in the previous sentence.

No, because it adds unnecessary information that is unrelated to the main topic of the paragraph.

NO CHANGE

two species can coexist without competing for resources.

competition for resources causes both organisms to go extinct.

when two species compete, one will adapt to find a new niche.