Recent analysis indicates that the chytrids are the most primitive division of fungi and that a single event resulted in the loss of flagella in the more advanced fungi.
Answer the following statement true (T) or false (F)
False
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Although lacking a TCA cycle and a respiratory chain, ________ can divide with a generation time of eight to ten minutes when growing in a human host.
A. Staphylococcus aureus B. Streptococcus pyogenes C. Clostridium perfringens D. Helicobacter pylori
The atomic number refers to the
a. mass of an atom. b. number of protons in an atom. c. number of both protons and neutrons in an atom. d. number of neutrons in an atom. e. number of electrons in an atom.
Which of the following antibody types is the most common in the blood, lymph, and interstitial fluid?
A) IgD B) IgE C) IgG D) IgA E) IgM
The cells of the immune system that are responsible for attacking cells that have become cancerous are the:
a. B-cells b. cytotoxic T-cells c. helper T cells d. suppressor T cells (T regulatory cells)