Which part of the amniotic egg is a fluid filled sac that allows the embryo to develop in a water environment?
A. allantois
B. amnion
C. chorion
D. yolk sac
E. shell
A
Biology & Microbiology
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Which of the following are most susceptible to complement lysis?
A. Gram-positive bacteria B. Gram-negative bacteria C. Bacteriophages D. Prions
Biology & Microbiology
In marine environments, salinity averages about ____%
a. 1 b. 3 c. 8 d. 12 e. 25
Biology & Microbiology
Leaf abscission is initiated and orchestrated by the hormone abscisic acid
____________________ Indicate whether the statement is true or false.
Biology & Microbiology
The seasons are determined primarily by the Earth’s tilt
____________________ Indicate whether the statement is true or false.
Biology & Microbiology