To understand the environment of the fossilized organism to see what it would have ate or drank anything. in the surrounding area.
It depends on the particular ecosystem and why and how it was destroyed. It can take just 2 years or over 100 years depending on the different factors. Sometimes ecosystems never recover.
B. A persistent neurotoxin is a substance that damages the brain and nervous system
Carbon dioxide and water 6CO2 + 6H2O
The correct answer is a sponge.
<span>A sponge (Porifera) is a multicellular organism which consists of two layers of cells and the mesophyll between them. Those cells are unspecialized and can transform into other types. The body of sponges is full of pores and channels which allow the water to circulate and thus to obtain food and oxygen.</span>