Answer:
Explanation:Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remains.
Mitosis, it only occurs in organisms whose cells contains chromosomes.
The answer to this question would be: knee chest position.
The position that ideal for sigmoidoscopy would be knee chest position as the position giving a good height and maneuverability to the operator. But the position might be not very comfortable for the patient. Another position that can be used is left lateral position.