Before microorganisms are stained, MOST appear ________ when viewed with brightfield microscopy.

a) golden
b) green
c) colorless
d) hollow


Ans: c) colorless

Biology & Microbiology

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Which element's isotope is commonly used to determine when biological samples such as fossils, were formed?

A. nitrogen B. sulfur C. oxygen D. carbon E. hydrogen

Biology & Microbiology

Which of the following is NOT true about the cohesion-tension model of water transport?

Select one: a. Water must completely fill the pipeline. b. Water molecules attract one another. c. Transpiration exerts a tension as water evaporates from leaves. d. Water is transported in the phloem. e. Water must be attracted to the sides of the xylem.

Biology & Microbiology

Describe the major histocompatability complex with regard to its: a) location, b) composition, c) relationship to specific cell markers, and d) role in regulation of immune reactions.

What will be an ideal response?

Biology & Microbiology

Dehydration synthesis is a common feature of polymer production in cells.

Answer the following statement true (T) or false (F)

Biology & Microbiology