ATP - Adenosine Tri-phosphate. The element is an energy source that fuels many of the biological processes in both humans and other organisms, even plants. The most important element is the tri-phosphate.
All of these are not part of the life cycle. It's man-made. Think of it in biology terms - something that's created genetically.
Answer:
Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms. Introduction In ecology and biology, abiotic components are non-living chemical and physical factors in the environment which affect ecosystems
Preserved footprints left behind by animals are called ichnites.
I believe the correct answer is C. Nektons include bony fish and squid.
