Ecological cycles includes the of organisms.

a. cell structure
b. speciation
c. past lives
d. seasonal behavior

D. Seasonal Behavior

Explanation:

Ecological cycles are processes that occur in nature to ensure the recycling of chemical elements in the environment. It is these cycles that enable the elements to interact with the environment and living beings, that is, they ensure that the element flows through the atmosphere, hydrosphere, lithosphere and biosphere. Living organisms (plants, animals, microorganisms, etc.) are of great importance in the occurrence of these cycles, because ecological cycles include the seasonal behavior of organisms, which greatly influences the chemical, physical and biological reactions necessary for the cycles to occur naturally.

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explanation:

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answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.