What is the genotype ​

Genotype for generation 2, individual 5 is bb

Explanation:

Blue eyes is recessive, and the individual has blue eyes so his genotype is bb. This is because an individual needs 2 recessive alleles of the same trait for the trait to be expressed

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.