<span>vestigial structures because they are hard </span>
Answer:
It is habitat and then niche
Explanation:
I just answered it
The answer is D, serving as a primary source of energy for the body.
Answer:
Preservation of remains (protection against scavenging, erosion and environmental damage) High pressure to promote mineralisation of remains (i.e. turn hard body parts into fossilised rocks) Anoxic (low oxygen) conditions to protect against oxygen damage and prevent decomposition by saprotrophs
Explanation: