A patient has pneumonia. Gram-negative rods are cultured on nutrient agar from a sputum sample. The etiology is
A) Burkholderia pseudomallei.
B) Chlamydophila psittaci.
C) Haemophilus influenzae.
D) Legionella pneumophila.
E) Staphylococcus aureus.
A
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An untied inflated balloon flies because
(a) the pressure is higher inside than outside the balloon. (b) the pressure is lower inside than outside the balloon. (c) air flows down its pressure gradient. (d) both a and c occur.
Phytoremediation uses the ability of plants to take up __________ dissolved in soil w What will be an ideal response?
ater.
Which eukaryotic organelles likely arose from symbiotic relationships between larger cells and bacteria?
a. nuclei b. endoplasmic reticulums c. vacuoles and chloroplasts d. mitochondria and chloroplasts e. mitochondria and Golgi complexes
A culture in a closed vessel to which no additional medium is added and from which no waste products are removed is called a ________ culture.
A. batch B. semicontinuous C. fed-batch D. continuous