Microspheres 

A. have a boundary membrane.
B. are formed from heating protein-like molecules
C. contain macromolecules.
D. All of these answers are correct.


D. All of these answers are correct.

Biology & Microbiology

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In 1928, Frederick Griffith's experiments with Streptococcus pneumoniae suggested that

A) bacteria do not incorporate the DNA of other bacteria. B) attenuated R (rough) bacteria easily revert to the wild type (virulent). C) DNA was conclusively the molecule of heredity. D) heat-killed bacteria could somehow "transform" live bacteria. E) all of the above

Biology & Microbiology

In alternation of generations, two haploid gametes fuse in fertilization to form a zygote.

A. tetraploid B. haploid C. gametophytic D. diploid E. triploid

Biology & Microbiology

The two true pathogenic enteric genera of the Enterobacteriaceae are _____ and _____.

Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

The addition of excess nutrients in aquatic habitats can result in

a) oxygenation b) oligotrophication c) eutrophication d) stratification

Biology & Microbiology