An amoeba trophozoite with visible ingested RBCs that is seen in a microscopic examination of a fecal smear would likely be the pathogen ________.
What will be an ideal response?
Entamoeba histolytica
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A researcher notices that in a certain moth species, some females prefer to feed and lay eggs on domesticated solanaceous plants like potatoes and tomatoes. Other females prefer to feed and lay eggs on wild solanaceous plants like Datura. Both male and female moths primarily use scent to find these plants from afar. Females tend to mate where they feed, and the researcher finds a genetic basis for scent preference in these moths. Based on the above information, what might be occurring in this moth species?
A) divergence in sympatry B) divergence due to habitat fragmentation C) postzygotic isolation D) polyploidization
The appendix is part of the
a. cecum. b. colon. c. rectum. d. small intestine. e. stomach
The lancefield classification system for streptococci is based on
A. P protein B. M carbohydrate C. C carbohydrate D. M protein
Which functions earlier in development: maternal-effect genes or zygotic genes?
What will be an ideal response?