In a vaccine preparation, the term "attenuated" means that the agent does NOT replicate

Indicate whether the statement is true or false


FALSE

Biology & Microbiology

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Phagocytic cells that digest a pathogen, then insert a bit of pathogenic antigen on their cell membrane, are described as being _____ cells.

A. natural killer B. helper T C. antigen-presenting D. memory

Biology & Microbiology

In humans, CCK induces _________.

What will be an ideal response?

Biology & Microbiology

An important source of vitamin K in the intestine comes from which species?

A) Helicobacter pylori B) Streptococcus mutans C) Vibrio cholerae D) Giardia lamblia E) Escherichia coli

Biology & Microbiology

What mechanisms do ectothermic animals have for thermoregulation? Check all that apply.

_____ countercurrent heat exchange _____ changing the rate of heat production by muscular activity _____ changing the rate of heat loss by vasodilation and vasoconstriction _____ relocating to warm areas when too cold, or to cooler areas when too hot _____ insulation in the form of feathers or fur

Biology & Microbiology