Which of the following alga is mismatched with its description?
A. Ulva-multicellular
B. Chlamydomonas-unicellular
C. Volvox-filamentous
D. Chara-multicellular
Answer: C
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Which one of the following represents a standard Watson-Crick base pair interaction?
A. G-T B. C-A C. G-C D. A-G E. T-C
Which of the following is the correct order of the three major forms of nitrogenous waste listed from highest amount of water required for excretion to lowest amount of water required for excretion?
A. ammonia, urea, uric acid B. ammonia, uric acid, urea C. urea, ammonia, uric acid D. urea, uric acid, ammonia E. uric acid, urea, ammonia
The ____ is the developmental origin of the body cavity between the gut and muscles of the body wall
for most protostomes.
a. schizocoelom b. mesoglea c. archenteron d. enterocoelom e. blastopore
What are nematocysts?
a. reproductive cells b. excretory organs c. sets of muscle cells
d. circulatory cells e. defensive cells