Members of the ________ are Gram-positive bacteria that have a distinctive process for cell separation known as "snapping division."
A. Actinomycetes
B. Clostridium
C. Corynebacterium
D. Mycoplasma
E. Rhizobium
Answer: C
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Margarine is made by hydrogenating vegetable oils so that they take on the consistency of butter. Propose a chemical basis for this change from a liquid to a solid
A. Hydrogenation of fats changes them from saturated to unsaturated, which are more solid. B. Trans-fatty acids are changed from unsaturated to saturated, allowing them to solidify. C. Trans fatty acids are changed from saturated to unsaturated, allowing them to solidify. D. Hydrogenation of fats changes them from unsaturated to saturated, which are more solid.
By the eighth week in humans
a. the embryo looks distinctly human. b. the neural tube is complete. c. upper and lower limbs have formed, and individual fingers and toes have separated from each other. d. male or female reproductive structures are forming. e. all of these are true
The Florida panther, Puma concolor coryi, is one of the most threatened species on Earth, with only 80-00 individuals remaining. Their population is most threatened by humans, habitat loss, and their own poor health due to genetic diseases. Some conservationists want to introduce new individuals from Texas, the mountain lion, Puma concolor. Scientists are currently uncertain whether the Florida panther and the Texas mountain lion are the same or different subspecies.What level of biodiversity in the panther population are scientists most concerned with?
A. Species diversity B. Population diversity C. Local diversity D. Genetic diversity E. Ecosystem diversity
In which part of the chloroplasts are the Calvin cycle enzymes located?
A. envelope B. grana C. cristae D. stroma E. thylakoids