The role an organism plays within its ecosystem is called its ________.
Fill in the blank(s) with the appropriate word(s).
niche
The role an organism plays within its ecosystem is called its niche.
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Although the intestinal microbiota for most people consists of the same types of organisms, the relative percentages of organisms varies significantly from person to person.
Answer the following statement true (T) or false (F)
Signaling involves molecule A that binds another specific molecule B, often delivering the signal in the process. What do we call molecule A in this scenario?
a. target cell b. receptor c. ligand d. enzyme
Which of the following is (are) a sterilizing gas(es) that can be used on heat-sensitive materials?
A. Isopropanol B. Glutaraldehyde C. Ethylene oxide D. Chlorine gas
You are interested in mapping the relative positions of three genes in the E. coli genome and have access to several cell types to use for the mapping:
a) Describe F?, F+, Hfr, and F' bacterial cell types. b) How would you use one or more of these cell types to map genes A, B, and C in the E. coli genome? c) If you found that the results were A = 10, B = 5, and C = 3 (in the correct units), what could you conclude about the order and proximity of the three genes? What will be an ideal response?