A fully developed crypto ecosystem, such as Ethereum or Solana, usually consists of the following foundational layers: 

• Blockchain Infrastructure (Layer 1): The base chain (e.g., Ethereum, Solana, Avalanche)
• Native Token/Cryptoasset: The digital currency that fuels the network(ETH, SOL, BNB).
• Decentralized Applications (DApps): The blockchain,Decentralized Finance (DeFi) ,NFT marketplaces
• Infrastructure & Tooling: Essential services that make the network usable.
• Bridges & Interoperability Tools