The fact that the Basilosaurid had back legs and nostrils between the front and top of its head
and the Maiacetus has legs with webbed feet
are all examples of what type of evolution
evidence?
Fossil record
DNA comparisons
Embryology development
Comparative anatomy

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.

Enzyme. anything that ends in "ase" is usually an enzyme.

What you get when you cross cinderella with a barber will shock you, since cinderella is one of the most beautiful princess in disney characters. she was being idolized by a lot of female kids all around the world. her story inspired a lot of people which makes her character more popular and being loved by many children. 

Potassium is the correct answer i believe