Where is the primary motor area responsible for initiating voluntary commands to skeletal muscles located?


Answer: Frontal Lobe

Biology & Microbiology

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Which of the following is NOT needed for transcription? 

A. enzymes B. DNA C. RNA nucleotides D. ribosomes

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology

The "steps" of the DNA double helix spiral staircase are

A) sugars. B) hydrogen bonds. C) base pairs. D) nucleotides.

Biology & Microbiology