Two organisms present in the same genus are usually more closely related to each other than to organisms in other genera.
a. true
b. false
Ans: a. true
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Which medium can be described as a nutritionally rich medium used to grow various microor-ganisms, either as a broth or as an agar, with or without added blood?
a. Chocolate b. Colistin, nalidixic acid (CNA) blood c. Brain-heart infusion (BHI) d. Thioglycollate broth
The knee is stabilized by wedges of cartilage called ________
a. menisci b. disks c. patella d. ligaments
In some chordates, the ________ is (are) replaced by ________.
A. gill arches; pharyngeal pouches B. a vertebral column; notochord C. dorsal hollow nerve cord; a ventral solid nerve cord D. notochord; a dorsal hollow nerve cord E. pharyngeal pouches; gills
Lysozyme is effective against nearly all disease causing agents
Indicate whether the statement is true or false