Molecules with the same empirical formula but different structural formulas are
A. polymers.
B. steroids.
C. isomers.
D. enzymes.
C. isomers.
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What will be an ideal response?
The above diagram is an example of ____
a. a closed circulatory system with one heart b. an open circulatory system with one heart c. a closed circulatory system with a three-chambered heart d. an open circulatory system with a two-chambered heart e. a closed circulatory system with a four-chambered heart
Which of these groups consist of parasitic flagellated cells, such as Trypanosoma, the organism that causes sleeping sickness?
A) metazoans B) kinetoplastids C) diatoms D) brown algae E) ciliates
Thrush and vaginitis are caused by
A) herpesvirus. B) Chlamydia trachomatis. C) Candida albicans. D) Staphylococcus aureus. E) Streptococcus pyogenes.