Fossils provide scientists with evidence that allows them to hypothesize how living organisms have evolved over time. Tiktaalik roseae was a unique organism that has been shown to be 375 million years old. It has been nicknamed the
"fishapod because it is believed to be a common ancestor of both fish and tetrapods, the first four- legged animals
How would a scientist study the relationship between the Tiktaalik roseae and modern fish and tetrapods?
create a diagram that hypothesizes ancestry
use relative dating
use transitional fossils to determine age
review its analogous structures

It’s A on edgenuity Cumulative exam review

Icant be totally sure but i would say with confidence that it is example #1 about cells.

Hunting in the darksome fish rely on senses beyond sight. in the darkness of the marianas trench, a fish called the rattail has an extremely sensitive sense of smell. the fish uses scent, rather than sight, to steer toward food. once it's near food, the rattail uses a special organ on the bottom of its chin to guide itself by feel.marine snowone staple of the deep sea diet is "marine snow," flakes of organic, edible substances that sink down from the upper ocean. animals at the ocean's bottom find sustenance in everything from the bodies of dead creatures to fecal matter. marine snow is diverse enough to support numerous species. for instance, several species of snails and worms feed exclusively on deceased whales.microorganismsthe deep sea is an intricate ecosystem, and even the ocean floor itself plays a part. hydrothermal vents are cracks in the sea floor where erupting magma mixes with ocean water to produce plumes of hot, sulfur-rich chemicals. some microbes can use these chemicals for energy, sustaining their existence and that of the animals who depend on their roles in the deep sea food chain.