During the time American youth are awake, the activity that consumes more of their time than any other is:

A. sports
B. media involvement
C. sex
D. school
E. Unanswered


Answer: B. media involvement

Biology & Microbiology

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Organic molecules have a carbon backbone and _____ such as -OH and -NH2 that affect their chemical properties. 

A. chemical groups B. R groups C. extension groups D. functional groups

Biology & Microbiology

The human body may stop responding to a stimulus even though the original stimulus is still present; this is a process referred to as receptor adaptation.

Answer the following statement(s) true (T) or false (F)

Biology & Microbiology

Long coding RNAs (lnc RNAs) are characterized by:

a. the presence of introns. b. the lack of a polyA tail. c. their roles in regulating transcription. d. being less than 100 bases in length. e. binding to zinc finger transcription factors.

Biology & Microbiology

The donor cell makes ________ whose function is to bring F- cells close enough to transfer a ________ to the recipient.

A. an F factor; replicated F factor B. a sex pilus; single strand of DNA C. a sex pilus; bacterial chromosome D. a sex pilus; double strand of DNA E. an F factor; fertility plasmid

Biology & Microbiology