Which of the following groups comprise almost half of all animal phyla?
A. ecdysozoans
B. cnidarians
C. lophotrochozoa
D. annelids
C
Biology & Microbiology
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Which hormone increases muscle mass?
a. progesterone b. estrogen c. luteinizing hormone d. testosterone e. myostatin
Biology & Microbiology
Of the following, which cell structure would most likely be visible with a light microscope that has been manufactured to the maximum resolving power possible?
a. mitochondrion b. microtubule c. ribosome d. largest microfilament e. nuclear pore
Biology & Microbiology
What type of microscope uses magnetic lenses to bend beams of electrons?
a. compound microscope b. confocal microscope c. scanning electron microscope d. transmission electron microscope e. light microscope
Biology & Microbiology
The endosperm of an angiosperm seed is typically:a
haploid (1n). b. diploid (2n). c. triploid (3n). d. quadraploid (4n).
e. pentaploid (5n).
Biology & Microbiology