Trilobites are extant.

A-True
B-False


Answer is A-True

Biology & Microbiology

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What is the fundamental concept that causes gel electrophoresis to work?

A. Different proteins have different charges and sizes. B. Different proteins respond differently to dyes in a gel electrophoresis. C. Some proteins are enzymes and will react with molecules in the gel. D. All proteins have the same charge and will move through the gel at the same speed. E. All proteins will react with a dye to produce a band.

Biology & Microbiology

Which of these organisms is NOT iteroparous?

A. humans B. oak trees C. bears D. dogs E. agave plants

Biology & Microbiology

Adding nucleotides onto a growing DNA strand during DNA replication in cells occurs in ____

a. the 5' ® 3' direction for the leading strand and the 3' ® 5' direction on the lagging strand b. either the 5' ® 3' direction or the 3' ® 5' direction on both strands, depending on where replication begins c. the 5' ® 3' direction only d. the 3' ® 5' direction for the leading strand and the 5' ® 3' direction on the lagging strand

e. the 3' ® 5' direction only

Biology & Microbiology

The information storage molecules of cells are called:

A. enzymes. B. hormones. C. nucleic acids. D. proteins. E. phospholipids.

Biology & Microbiology