Each of the following statements concerning bacterial spores is correct EXCEPT:

A. They are formed by Gram-positive rods
B. Their survival ability is based on their enhanced metabolic activity
C. They can be killed by being heated to 121 C for 15 min
D. They contain much less water than bacterial cells


Ans: B. Their survival ability is based on their enhanced metabolic activity

Biology & Microbiology

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Which of the following would the molecule shown above be called?

a. a protein b. a lipid c. a nucleic acid d. a carbohydrate e. an amino acid

Biology & Microbiology

Place the following in the correct order of the

structures blood flows through beginning with the arrival of blood at the vena cavae and ending with the blood flowing to the lungs. 1. right atrioventricular valve 2. pulmonary artery 3. right ventricle 4. right atrium 5. pulmonary valve

a. 4-3-5-2-1 b. 4-1-3-5-2 c. 4-2-3-1-2 d. 3-1-4-5-2 e. 3-2-4-5-1

Biology & Microbiology

Yeasts are members of which of the following?

a. Ascomycetes b. Basidiomycetes c. Glomeromycetes d. Chytrids e. Zygomycetes

Biology & Microbiology

Which of the following evolutionary innovations played key roles in allowing life on land?

a. conjugation b. amniotic egg c. exoskeleton d. B and C e. all of the above

Biology & Microbiology