The gene resulting in the phenotype of flat fingernails is recessive. Rounded fingernails are dominant. Two parents have the genotype Ff and Ff. What are the chances their child will have flat fingernails?

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

cell division is not regulated in tumor cells.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.

the answer is c because it is most logical.