A structure that appears in a transmission electron micrograph but is not actually present in the specimen is known as a(n)
A) antigen.
B) biofilm.
C) artifact.
D) refraction.
E) mordant.
C
Bloom's Taxonomy: Knowledge
Section: Microscopy
Learning Outcome: 4.11
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The letter “D” from the above figure represents
a. ectoderm. b. endoderm. c. mesoderm. d. neural plate. e. all of these.
Which sterilization technique involves cutting the vas deferens on each side to prevent sperm from leaving the body?
A) hysterectomy B) tubal ligation C) testicular deactivation D) vasectomy
While touring the ancient Egypt exhibit at the local history museum, you learn that ancient Egyptians would slash figs in order to stimulate ripening. Based on your knowledge of plant hormones you hypothesize that wounding the figs must release
A. gibberellin. B. abscisic acid. C. indoleacetic acid. D. ethylene. E. cytokinin.
Proteobacteria members thrive in soils and occur at high concentrations as well. Other bacterial taxa are considered much less diverse in terms of their metabolic capabilities
Due to the role isolation has in discovering metabolic pathways, consider how obtaining hundreds of new isolates from a less studied phylum might change our views on metabolic diversity. Predict how the results of discovering another highly metabolically diverse group might be handled in terms of taxonomic assignment. What will be an ideal response?