How are cancer cells different from noncancerous cells? A. Cancer cells do not contain DNA; therefore, the body cannot regulate their growth and division.
B. Cancer cells do not respond to the normal signals that shut down the cell division process.
C. Cancer cells are neither recognized nor destroyed by the body's immune system.
D. Cancer cells grow to extremely large sizes, forming tumors that block the flow of blood.

Which osmotic and ionic strategies must marine teleost fishes employ?

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.