B cells are the main cells of the cell-mediated pathway
a. true
b. false
Ans: b. false
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Which is the predominant life cycle phase of the Moon Jellyfish seen here?
Bacteria in the phylum Firmicutes are distinguished from the phylum Actinobacteria on the basis of
A) their Gram stain reaction. B) the high G + C content of their DNA. C) their spiral shapes. D) the low G + C content of their DNA. E) the presence of LPS in their membranes.
Given what you know about the differences between prokaryotic cells and eukaryotic cells, rate the following things as "good" or "bad" processes to study in the model organism E. coli
A. formation of the endoplasmic reticulum B. DNA replication C. how the actin cytoskeleton contributes to cell shape D. how cells decode their genetic instructions to make proteins E. how mitochondria get distributed to cells during cell division
The natural antacid that protects the intestines against stomach acid is produced by the __________.
a. pancreas b. stomach c. liver d. esophagus e. small intestine