Protein and Nucleic Acid Relationship<span>. As molecules, </span>proteins and nucleic acids<span> are not similar in structure. ... The major </span>relationship between<span> the two has to do with</span>protein<span> production -- DNA contains the information that a cell uses, with the help of RNA, to make </span>protein<span>.</span>
Bony fish belong to Class Osteichthyes, while cartilaginous fish belong to Class Chondrichthyes. Bony fish have a bony skeleton, while cartilaginous fish have one composed mostly of cartilage. Bony fish have body coverings of scales, while cartilaginous fish are covered with dendritical projections (think shark skin).
Bony fish are found in fresh and salt water; cartilaginous fish are found only in salt water. Bony fish have gills covered by an operculum; cartilaginous fish have gill slits. Bony have no eyelids; the cartilaginous fish do. Bony fish have an air-filled swim bladder; cartilaginous fish have an oil-filled liver to keep them bouyant. Hope this helps! Whew!
Answer:
B. air pressure increases
Explanation:
Think of it like this, the lower you are, the more air is above you. The higher ur elevation, the less air above you. I hope this can help!
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Geologists have divided the earth history into time units that are largely based on the earth's biotic composition. The modern geological time scale includes both relative and absolute age dating and represents the most up-to-date assessment of the earth's history.
In the modern geological time scale, the eras in earth's history when the planet was populated with advanced life forms are referred to as the Paleozoic (meaning ancient life), the Mesozoic (meaning middle life), and the Cenozoic (meaning recent life).
