Answer Happy

30. _________ obtain energy by breaking the
carbon-carbon bonds in already existing carbon compounds (organic
compounds) and harvest energy by oxidizing organic
compounds?
A. photoautotrophs
B. photoheterotrophs
C. chemoautotrophs
D. chemoheterotrophs
36. Organisms that may be found thriving in mud and
bottom sediments of deep ocean waters are described as
________.
A. barophiles
B. sediphiles
C. mesophiles
D. neutrophiles
38. Calculate the phenol coefficient for agent,
Ecolicide, based on the following data:
0.05M phenol kills 100% of E.coli in 10
minutes
0.01 M Ecolicide kills 100% of E.coli in 10
minutes
A. 0.05
B.0.20
C. 1
D. 5
47. A DNA segment synthesized from an RNA template
requires which enzyme?
A. reverse transcripatase
B. restriction exonuclease
C. restriction endonuclease
D. alkaline phosphatase
50. Which of the following methods can lead to the
mixing of ALL the chromosomes of two different
cells?
A. protoplast fusion
B. transformation
C. extrapolation
D. all of the choices a,b, & c are correct