Answer:
Ecosystem
Explanation:
An ecosystem is a level of organization referring to the group of living organisms including plants, animals, microbes interacting with one another, and also with the non-living parts of their environment e.g temperature, water.
Based on this explanation, a level of organization that encompasses all th living and non living factors interacting in the pond environment represent an ECOSYSTEM.
Evolution- the change in a species over time Adaptation- a change in a species that betters their survival
Natural selection- the idea that organisms that aren’t fit for the environment die off and only the organisms fit for the environment survive and can pass there traits to the next generations. Hope this helps at least get you started! :))
Highly; Periosteum; Nutrient; Nutrient foramen; Oxygen;
Just choose either of these- precipitants/co-existing illnesses (trauma, infxn, pancreatitis, etc), comorbid medical & psych dx (suicidality), iatrogenic causes (evolution of sx while hospitalized), previous hx of AWD, dehydration, electrolyte & vitamin deficiencies