A _________ relationship is one in which two or more kinds of organisms live together in often elaborate and more or less permanent association. 

A. symbiotic
B. parasitic
C. mutualistic
D. synergistic


A. symbiotic

Biology & Microbiology

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An immunoglobulin (Ig) molecule, of whatever class, with regions symbolized as C or V, H or L, has a light chain made up of _____

A) one C region and one V region B) three C regions and one V region C) one H region and one L region D) three H regions and one L region E) two C regions and two V regions

Biology & Microbiology

Form refers to ________, and function refers to ________

A) anatomical structure; physiological actions B) anatomical structure; environmental actions C) physiological actions; anatomical structure D) physiological actions; environmental actions

Biology & Microbiology

Cellular respiration is the process by which:

A) oxygen is produced during metabolic activity. B) ATP molecules are converted into water and sugar. C) oxygen is used to transport chemical energy throughout the body. D) light energy is converted into kinetic energy. E) energy from the chemical bonds of food molecules is captured by an organism.

Biology & Microbiology

Are superantigen reactions beneficial or harmful to the host? What is different about a superantigen reaction compared to normal antigen-host cell interactions?

What will be an ideal response?

Biology & Microbiology