Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

Specialized cells which perform a particular function form : organisms organs tissues

Which would be the outcome in a fertilized egg if the process of meiosis did not occur? twice as many chromosomes as the parents half as many chromosomes as the parents same number of chromosomes as the parents triple the number of chromosomes as the parents?

Are the earth's ocean floor and continents the same age geologically? why or why not?