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Question:Procedure 1. Begin by examining muscles found in the upper limbs. First, extend your forearm so you have a clear view of your hand. What muscle is required to perform this extension? Extend your fingers out so they are straight and splayed apart. Then, retract your fingers into a tight […]

South Mountain Park in Phoenix, AZ, is the largest city park in the US. Among other fancy things, it is notable for its population of Chuckwallas, with the highest density reported. Unique to this population is the male phenotype with orange tails. South Mountain can sometimes be viewed as an […]

How did Santiago Ramon y Cajal (1906) famous neuroanatomical drawings of the nervous system contribute to our current understanding of the cellular wiring of the nervous system? A. Distinguish the morphological difference between neurons and glia and list their respective classifications based on morphology or shape. B. Which glia are […]

Q. Bryophytes and fern allies were most prevalent during early plant evolution; however, many of these plants have been replaced by vascular plants. These “lower” plants possess flagellated sperm that have to swim through an aqueous medium to reach and fertilize eggs. From this information, in what kinds of habitat […]