Large teeth is a dominant trait in piranhas. Which of the following shows the correct probability of offspring traits if a heterozygous male and female were to
mate?

You didn't include the following

however 2 heterozygotes

build a punnett square which is a just a box with the alleles contributing from each parent one on the top and one on the side

       A      a

A    AA     Aa

a      Aa   aa

That is what would happen so 25% chance of AA and 25% of aa and 50% chance of a heterozygote

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]