If the nucleus of this cell has 84 chromosomes, how many chromosomes would this cell’s sperm cell have? a: 168. b: 84. c: 42. d: 21

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Which law represents a balanced chemical equation?