5. You go to the science museum with your teacher to look for an idea for a science fair exhibit. You look at the following display about fossils from Precambrian and Cambrian rock strata. The sign on the exhibit says the following:
• Rock strata from the late Precambrian Era provide evidence of only a small number of different kinds of animals.
• Rock strata from the early Cambrian Period provide evidence of a huge number of different kinds of animal life.

Which of the following is the BEST description for what occurred during the early Cambrian Period?

Look at the picture at the possible answers are in it.

The answer is c establishing proper sleep hygiene

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.