<span>B. manufacturing of ribosomes is the main function of nucleolus
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Answer: Dinosaurs
Many forms of plants, invertebrates, and fishes evolved during the Mesozoic Era. Since the dinosaurs were the dominant animals on land then, the Mesozoic Era is called the Age of Reptiles. Dinosaurs, however, became extinct even before the end of the Era.
<span>This type of cognitive development indicates spatial relationships. The toddler can tell the difference between the objects shapes and understands smaller ones fit inside larger ones. This indicates his awareness to their spatial relationships, their size and shape difference.</span>
A similar gas to Nitrogen would be Phosphorus as it is in the same group as Nitrogen. The least similar would be Neon as it os a very stable noble gas in a different group.