Which is(are) the principal substance(s) that
regulate(s) thigmotropism?
a. auxin and ethylene
b. gibberellin and ethylene
c. abscisic acid and auxin
d. cytokinin and abscisic acid
e. none of these
A
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TCA cycle enzymes are found in the ________ of eukaryotic cells.
Fill in the blank(s) with the appropriate word(s).
The absence of this neurotransmitter would lead to a person having problems regulating body temperature and controlling their emotions.
A. serotonin B. dopamine C. endorphins D. acetylcholinesterase
Typical pneumonia is caused by which bacterium?
a) Haemophilus influenzae b) Streptococcus pneumoniae c) Mycoplasma pneumoniae d) Legionella pneumophila
Thrush and vaginitis are caused by
A) herpesvirus. B) Chlamydia trachomatis. C) Candida albicans. D) Staphylococcus aureus. E) Streptococcus pyogenes.