The respiratory system is separate from the circulatory system. It is a complex network of tubes that delivers oxygen-containing air to every cell of the body.
Answer: tracheal tubes
Nitrogen. The acronym CHON is an easy was to remember these four biomolecules that make up life. Carbon, Hydrogen, Oxygen and Nitrogen are essential for life as we know it. Nitrogen plays a critical role in the construction of proteins and DNA. And Nitrogen is considered essential in the overall process of photosynthesis for the production of chlorophyll in plants.
Mercury i would say that since its one of the two liquids on the periodic table it could be used for a bunch of diffenent things. Its atomic number is 80 and since 8 and 0 are my two fav numbers it also works out.
Explanation:
<span>Mountainous ocean ridges, deep sea trenches, and jagged linear fracture zones. Other significant features of the ocean floor would be aseismic ridges, abyssal hills, seamounts and guyots. The basins also contain a variable amount of sedimentary fill is the thinnest on the ocean ridges and usually the thickest near the continental margins. :)
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Answer:
Living things get energy from the consumption of food and drink by extracting nutrients and metabolizing them. By breaking down food into fats, sugars, carbohydrates, proteins, vitamins, and other compositional elements, your body is able to selectively choose which items and how much of each it needs to function well.