The land and the aquatic are the two types of global food webs
The answer to this question would be the last one, tissue.
These specialized cells group together to form a common function which then becomes a tissue. These tissues then group together and form an organ. Organs then form together a system and systems form together an organism. These organisms gather and form a community and eventually into an ecosystem. This is typically a process as to how cells become organisms and how organism make up the ecosystem. Cells are the basic unit of life. Without them, there would be nothing at all.
Answer:
Molecular level
Explanation:
Life is considered an emergent property of interactive molecules in a primitive environment. It is said to be emergent because life properties are not reducible to single molecules properties or even to the properties of all molecules contained in living systems. New properties emerge when all these molecules are part of living systems.