Which of the following is not true of ethylene?
a. It is a gas.
b. It induces abscission
c. It is involved in cell reproduction.
d. It is a hormone.
e. It is involved in stress responses.
C
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Many benthic organisms are dependent upon the neritic area to:
a. complete their life history cycle with juveniles as part of the plankton. b. provide plankton for food. c. protect them from desiccation and UV radiation. d. both a and b
Antibodies elicit the production of antigens
Indicate whether the statement is true or false
Complement proteins can form a system of proteins that create a pore in the membranes of bacteria. This system is
called the ____________________. Fill in the blank(s) with the appropriate word(s).
In the 2009 H1N1 “swine flu” pandemic, the influenza virus underwent a(n) ________, which made it especially deadly. Mortality of individuals ________ than 50 years of age was MOST common
a. antigenic drift / older b. antigenic drift / younger c. reassortment / older d. reassortment / younger