Descriptions of the number, size, and arrangement of parts of the organism.
Explanation:
Observation refers to the analysis of the external appearance of an object. In biology, observation of organisms refers to the analysis of their external morphology. It includes explanation about their external body parts, size of the body as well as number of each externally visible body part. It does not include any conclusions based on histology, anatomy or DNA analysis.
The reason why the animal that has been struck by the arrow
goes limp and quickly suffocates because the acetylcholine receptor sites are
blocked and this was made possible because of the drug curare they use in
poisoning the top of the arrows.
If the pH goes up than the coral reefs wouldn't be able to live and if they can't live there then there wouldn't be any life. There wouldn't be shelter for the fish and if there is no fish then the ecosystem would collapse.
