Weight gain and obesity may be partly caused by certain gut microbial communities that
A) absorb more vitamins and essential amino acids.
B) produce more volatile fatty acids by fermentation.
C) stimulate the gut endothelium to absorb more sugars.
D) produce more hydrogen gas by fermentation.
Answer: B
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In this cross-section of a typical plant leaf, the are where photosynthesis takes place
A. stomata
B. mesophyll cells
C. air spaces
D. stromata
E. outer epidermis cells
Initiation of DNA replication occurs at each origin, but only once, until a cell proceeds through anaphase.
a. true b. false
Which of these pathogens would most likely be attacked by antibody-dependent cell-mediated cytotoxicity?
A) varicella-zoster virus B) Salmonella typhi C) Staphylococcus aureus D) blood flukes (schistosomes)
Infection with (hepatitis/norovirus/rotavirus) is a common cause of viral gastroenteritis in adults
What will be an ideal response?