A group in a scientific experiment that serves as a ...

[ Vocabulary ]

A group in a scientific experiment that serves as a reference for comparison to the experimental group; a group that is untreated by the factor being tested.

A. variable

B. trials

C. control group

D. field study

Select your answer:
A B C D E

Random Topics:

Grammar: Adjectives & Prepositions There is, There are, Some, Any Modals for Deduction Passive Voice - Present Tenses Simple Past Tense and Past Perfect Tense Conditional Sentences and Verb Form Modals for Advice, Obligation/Prohibition, Necessity and Lack of Necessity Passive Voices Present Simple Verb Phrase

Other quiz:

Grammar for TOEFL › View

There are geographic, economic, and cultural reasons why _____ around the world.

A. diets differ

B. do diets differ

C. are diets different

D. to differ a diet

Pronoun › View

……………… my relatives.

A. Their
B. They’re
C. Them
D. They

Verbal Phrases › View

What is the appositive phrase in this sentence?

Chemistry, Sue’s favorite subject, is easy for her.

A. Chemistry

B. is easy

C. for her

D. Sue’s favorite subject

Modals of Obligation › View

– I failed the last exam.

– You ………..

A. must feel devastated

B. must to feel devastated

C. can´t be devastated

D. can´t to be devastated