Because their soft tissue and bones decay or get eaten before a fossil can be made.
B as it's not government regulations, technology or funding
Answer:
D. They form an ionic compound.
Explanation:
The bonds which are produced between a metal ion and a non-metal ion are termed as ionic bonds.
Multicellular organisms begin as a single cell. These cells then grow and undergo differentiation, the process by which cells develop specialized forms and functions.In multicellular organisms, cells are often organized into tissues, organs, and organ systems.
