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Iron, water, and sugar are examples of matter that are nutrients.
True or false

Nucleic acids offer variability because they contain alternate forms of genes called .

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.