Nekton are restricted to particular ocean areas by:
What will be an ideal response?
All of the above
Biology & Microbiology
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________ are responsible for the transmission of a signal between two adjacent nerve cells.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
14C is heavier than 12C because it has ____
a. two more electrons than 12C b. two more neutrons than 12C c. two more protons than 12C d. two more protons and two more electrons than 12C e. one more proton and one more neutron than 12C
Biology & Microbiology
Baleen plates are composed of:
a. calcium carbonate. b. cellulose. c. keratin. d. chitin. e. silica.
Biology & Microbiology
Uses of chlorofluorocarbons include all of the following EXCEPT for ____
a. gasoline additives b. air conditioner coolants c. refrigeration coolants d. plastic packaging e. solvents
Biology & Microbiology