What are sensory receptors?
A) cells that create action potentials and thresholds
B) localized areas of the CNS
C) chemicals that cross a synapse between two nerve cells
D) specialized neurons for detecting the world around you
D
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What is a defining feature of chordate embryos?
a. cephalization b. a nerve cord c. ganglia d. a brain e. a dorsal nerve cord
________ is the mechanism by which organisms measure seasonal changes in relative day and night length.
Fill in the blank(s) with the appropriate word(s).
A primary active transport process is one in which __________.
A. the plasma membrane folds inward to form a vesicle containing extracellular material B. an intracellular vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid C. molecules pass directly through the phospholipid bilayer of the plasma membrane D. molecules move through transport proteins that have been activated by ATP E. molecules move across the plasma membrane without an input of energy
All of the colonies form on the surface of a spread plate, whereas on a pour plate, colonies may be embedded in the agar as well as on the surface.
Answer the following statement true (T) or false (F)