Which of these animals has a unidirectional circulatory system?
a. jellyfish
b. honeybee
c. earthworm
d. snail
c. earthworm
Biology & Microbiology
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Acetic acid gives vinegar its sour taste. Which functional group has acidic properties and would release hydrogen ions in an aqueous (water) solution?
A. -OH B. -NH2 C. -SH D. -COOH E. -CO
Biology & Microbiology
In the case of the Fo complex, the "o" refers to the antibiotic ________, to which the structure is sensitive.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
How do the seeds of angiosperms differ from those of gymnosperms?
What will be an ideal response?
Biology & Microbiology
The dominant stage in the life cycle of tracheophyte plants is the
A. angiosperm generation. B. sporophyte generation. C. spore generation. D. epiphyte generation. E. gametophyte generation.
Biology & Microbiology