Which statement is correct regarding mutations?
A. They are always accidental changes in chromosomes of sperm or eggs.
B. Spontaneous mutations always result in extinction for a species.
C. Mutations are never found in nature.
D. Mutations always involve negative changes.
Answer: A
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Which of the following is a negative effect that alcohol can have on a family?
The motto of a permissive-indulgent parent is likely to be "____."
A. Because I say so B. Parents have rules because they care C. Be free, be yourself D. Children should not be seen nor heard
What happens with children's teeth between the ages of six and twelve?
What will be an ideal response?
In research analysis and reports, data are never directly aligned with an individual respondent, thereby protecting his or her identity. Thus, ________ is maintained.
A. reliability B. confidentiality C. validity D. credibility