Which of the following is FALSE?
A. Multicellularity allows organisms to become larger than physiologically possible for a single cell
B. A cell can grow infinitely large as long as there is adequate nutrition in its extracellular environment
C. In a multicellular organism, all cells must be exposed to either the environment or a circulatory system
D. Adaptations that increase surface area, such as invagiations or flattened cell shape, allow cells to become larger
E. Development and cell specialization is a consequence of multicellularity
F. All of these are true
G. All of these are false
Answer: B. A cell can grow infinitely large as long as there is adequate nutrition in its extracellular environment
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A. Atmospheric CO2 taken in by photosynthesis B. Elemental carbon taken in by plant roots C. Elemental carbon taken in by plant leaves D. Atmospheric CO2 taken in by soil bacteria
What interactions exist between a lion pride and a hyena pack?
A) +/+ B) +/o C) +/- D) o/o E) -/-
A collection of similarly specialized cells and any extracellular material they secrete and maintain describes
(a) an organ. (b) a system. (c) a tissue. (d) organelles.
Which is responsible for encoding the proteins found in a cell?
A. genome B. proteome C. cytoskeleton D. evolution E. extracellular proteins