Answer:
Cells, protein fibers, and an amorphous ground substance
Explanation:
Connective tissue provides support, binds together, and protects tissues and organs of the body. Connective tissue consists of three main components: cells, protein fibers, and an amorphous ground substance. Together the fibers and ground substance make up the extracellular matrix.
For an animal to be extinct none more of that specific species must exist on Earth. This makes it impossible for that species to come back to life.
Food chains model energy flow through an ecosystem. Producers pump energy into an ecosystem from an environmental source, and this energy is then passed from one organism to the next.
