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
Ans: b. A cell can grow infinitely large as long as there is adequate nutrition in its extracellular environment
You might also like to view...
The three germ layers are established:
A. once the blastula forms. B. once the inner cell mass of the blastula forms. C. once the blastula implants into the uterine wall. D. once the cells of the inner cell mass reorganize themselves into the gastrula. E. once the gastrula implants into the uterine wall.
What is clonal selection? How does it occur?
What will be an ideal response?
Decomposers
A. break down dead organic matter in the environment by secreting digestive enzymes. B. break down living organic matter by secreting digestive enzymes. C. destroy living cells and then break them down with digestive enzymes. D. live in close association with another species.
Guard cells are often associated with ____, special epidermal cells that provide a reservoir of water and ions
a. companion cells b. cuticle cells c. cork cells d. sclerenchyma cells e. subsidiary cells