Answer:
physical
Explanation:
science deals with physical things
Answer:
Chordates share some common traits. At some point in their life cycle, they have a notochord, a nerve cord, and pharyngeal (fayr uhn JEE uhl) slits in the neck or throat. The notochord is a flexible rod that supports the animal's back. ... Sharks are one type of vertebrate animal that have backbones made of cartilage.
<span>Some antibiotics are almost useless, because pathogens have developed a resistance to these antibiotics.
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Bacteria are one called creatures that can live inside or outside the human body
