Cell extension involves
A. loss of water.
B. low acidic condition.
C. enzymes that produce polysaccharides.
D. expansion of cellulose microfibrils.
E. water leaving the central vacuole.
D. expansion of cellulose microfibrils.
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A lichen is an example of a commensalistic relationship between a fungus and an alga
Indicate whether the statement is true or false
When the chromosomes uncoil, the nuclear envelope develops, and the cells divide it is which phase?
What will be an ideal response?
What structure hold the DNA copies together?
A. Centrosomes B. histones C. spindle fibers D. TSG's
Identify the features unique to protostome development.
A. Coelom forms by a splitting of the mesoderm, the blastopore becomes the anus, and the cleavage is spiral. B. Coelom forms by a splitting of the mesoderm, the blastopore becomes the mouth, and the cleavage is spiral. C. Coelom forms by a splitting of the mesoderm, the blastopore becomes the mouth, and the cleavage is radial. D. None of the features listed are unique to the protostomes.