Which of the following is not one of the four classes of organic molecules found in cells?
A. carbohydrates
B. vitamins
C. proteins
D. nucleic acids
E. lipids
Answer: B
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Which viral proteins help influenza bind to and enter a host cell?
A. Membrane Protein M2 and Nucleoprotein B. Nuclear export protein and Nucleoprotein C. PB1, PB2 and PA D. Hemagglutin and Neuraminidase
Which of the following groups can be
distinguished from other arthropods by its two pairs of antennae? a. insects b. millipedes c. chelicerates d. crustaceans e. trilobites
All Echinodermata are found:a
in marine habitats. b. in freshwater. c. on land. d. on the bottom of the ocean or lakes. e. in shallow ocean waters.
What is one of the earliest signs of nephron damage?
A. the absence of urination B. burning upon urination C. edema D. albumin or formed elements in the urine E. extreme pain