Where is the primary motor area responsible for initiating voluntary commands to skeletal muscles located?
Answer: Frontal Lobe
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You believe that an adult animal you are examining is a vertebrate but concede that it may be an invertebrate chordate. Which of the following would ensure that you are indeed looking at a vertebrate?
A) It is able to swim. B) It lacks a notochord. C) Its notochord functions as an endoskeleton. D) It uses its pharyngeal gill slits for respiration. E) It has a dorsal hollow nerve cord.
The "steps" of the DNA double helix spiral staircase are
A) sugars. B) hydrogen bonds. C) base pairs. D) nucleotides.
Which of the following is NOT needed for transcription?
A. enzymes B. DNA C. RNA nucleotides D. ribosomes
Consider the metabolism of a chlorophyll-based phototroph. In oxidative phosphorylation during cell respiration, the source of energy is ________ whereas in photophosphorylation the source of energy is ________.
A. NADH; NADPH B. highly reduced organic compounds; light C. ATP; light D. electron transport chain; chlorophyll