Which of the following is NOT a nitrogenous waste product produced by the excretory systems of animals?

A. ammonia
B. urea
C. bile pigments
D. uric acid


Answer: C

Biology & Microbiology

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The vast majority of microorganisms found in soils have been successfully cultured in the laboratory.

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

Biology & Microbiology

Ephedra, evergreen desert shrubs, are in which of the following plant groups?

a. cycads b. gnetophytes c. conifers d. ginkgos e. angiosperms

Biology & Microbiology

In a pedigree, an affected male would be designated by

A. a shaded circle. B. an open square. C. a square with a line through it. D. an open circle. E. a shaded square.

Biology & Microbiology

Cadherins _______

(a) are used to transfer proteins from one cell to another (b) mediate cell-cell attachments through homophilic interactions (c) are abundant in the plant cell wall (d) bind to collagen fibrils

Biology & Microbiology