Answer as soon as possible. will give brainnly.

The major ranks go from broad to specific in this order: domain, kingdom, phylum, class, order, family, genus, and species. So the most specific one is genus.

The two scientific names share the same first word: Ulva, which is a genus group of green algae.  That means they must be closely-related species.

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.

i wish i could with all of them i can barley see the first one so here's the answer to the first one b