Two oxygen atoms joined to each other by the sharing of two pairs of electrons form a(n):
A. double covalent bond.
B. single bond.
C. hydrogen bond.
D. ionic bond.
A. double covalent bond.
Biology & Microbiology
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Mechanism of genetic transfer that uses competent cells
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Which of the following is a function of inhalation through the pharynx in mammals, in addition to bringing oxygen into the respiratory system?
a. cooling the body temperature b. contributing to osmotic balance via water loss c. filtering out inhaled particulate matter d. drying of the air before it reaches the lungs
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Myelinated axons conduct action potentials more slowly than axons without a myelin covering
Indicate whether the statement is true or false
Biology & Microbiology
What is the electron carrier during photosynthesis?
Biology & Microbiology