Some cells are very large, seemingly in defiance of maintaining a large surface area to volume ratio
What are some strategies or adaptations that these cells may use in order to maintain a reasonable
surface area to volume ratio?What will be an ideal response?
Concepts to Consider: Changing cell shape in order to increase surface area without substantially
increasing volume; having long thin extensions of the cells in order to increase surface area.
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What is the period of rapid cell division in which the embryo does not increase in overall size?
A. syngamy B. cleavage C. neurulation D. meiosis E. crest formation
What is the most likely reason for the decrease in hominin hairiness compared to apes?
a. To limit infectious disease spread b. To improve hygiene c. To regulate temperature and allow sweat to evaporate d. To allow skin to absorb sunlight, for vitamin D e. To save energy that hair production requires
What type of mechanism controls body
temperature?
a. positive feedback b. inhibition c. negative feedback d. cyclical feedback e. none of these
Four features help define the __________: a notochord, a dorsal hollow nerve cord, a pharynx with gill slits, and a tail extending past the anus.
Fill in the blank(s) with the appropriate word(s).