Bacteria often live in complex, multi-species communities, like the layer of plaque that grows on your teeth, such a community is called a(n) ____.
A) disneyfilm
B) biotome
C) microtome
D) biofilm
E) anatome
Ans: D) biofilm
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The ____ hypothesis predicts that ecosystem functions will be maintained more reliably in natural communities when
multiple species perform a given ecological function but differ in their responses to environmental changes
a. scientific redundancy b. ecosystem function c. biological insurance d. natural community
e. fungal dominanceInside the penis, there are ____ cylinders of spongy tissue
a. one b. two c. three d. four e. five
Refer to the accompanying figure. Based on the phenotypes of the third generation, the genotype of the father in the second generation must be:
a. homozygous for albinism.
b. heterozygous for hair color.
c. heterozygous for albinism.
d. X-linked.
e. dominant
Nearly all cells, including E. coli and yeast, naturally take up DNA from their surroundings without chemical treatment
Indicate whether the statement is true or false