what exoenzyme protects Helicobacter pylori from HCl in the stomach?
What will be an ideal response?
Urease
Biology & Microbiology
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The hollow crater formed during gastrulation is known as
A. acrosome B. archenteron C. morula D. cleavage furrow E. trophoblast
Biology & Microbiology
Changes in the number of copies of chromosomal DNA segments and the genes they contain are called
____________________.Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Which of the following is a base or alkaline material?
A. NaOH B. HCl C. H2SO4 D. NaCl
Biology & Microbiology
A typical sponge is ____ because it produces ____
a. a hermaphrodite; only egg cells b. parthenogenetic; both egg and sperm cells c. a hermaphrodite; both egg and sperm cells d. parthenogenetic; only egg cells e. a hermaphrodite; only sperm cells
Biology & Microbiology