________ dating uses ratios of potassium to argon and can be used to determine absolute age

Fill in the blank(s) with correct word


Radiometric

Biology & Microbiology

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Animals that have the four basic characteristics of chordates plus a vertebral column are

(a) invertebrates. (b) hemichordates. (c) cephalochordates. (d) vertebrates.

Biology & Microbiology

The organelle that pinches off portions of its

membrane to form a compartment used for storage or transport is the a. mitochondrion. b. chloroplast. c. nucleolus. d. Golgi body. e. vesicle.

Biology & Microbiology

Vinblastine, a chemotherapeutic drug used to treat breast and testicular cancers, interferes with the assembly of

microtubules. Speculate how this drug works to inhibit cancer cell growth.

a. Vinblastine inhibits transition from G1 to S. b. Vinblastine inhibits transition from S to G2. c. Vinblastine inhibits cytokinesis. d. Vinblastine disrupts mitotic spindle formation and consequently mitosis. e. Vinblastine inhibits cyclin production.

Biology & Microbiology

In what ways do viruses differ from other pathogens?

A. Viruses lack genetic material. B. Viruses lack cytoplasm and organelles. C. Viruses have no protein structure. D. Viruses are composed of protein only. E. Viruses are composed of both protein and lipid.

Biology & Microbiology