Which of the following is not part of the lichen association?
A. Brown algae
B. Cyanobacteria
C. Green algae
D. Ascomycetes
Answer: A
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The conditions normally present in food such as moisture, acidity and nutrients are referred to as
A. extrinsic factors. B. intrinsic factors. C. endogenous factors. D. exogenous factors
Hormone levels and action are determined by
a. other hormones or releasing agents. b. carbohydrate activity. c. positive feedback systems. d. prostaglandins. e. touch receptors.
During fertilization, several sperm penetrate the corona radiata.
Answer the following statement true (T) or false (F)
When Griffith experimented with two types of Streptococcus pneumoniae, he found that if the
A) non-deadly strain was mixed with the heat-killed, deadly strain before injection, the mice died. B) non-deadly strain was mixed with the heat-killed, non-deadly strain before injection, the mice died. C) deadly strain was heat-killed before injection, the mice died. D) non-deadly strain was mixed with the heat-killed, deadly strain before injection, the mice lived.