An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of four
six
seven
five

1.the evidene of the reaction

2.yes

3.yes

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.