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.

the answer is b.) hydrogen bonds between bases.

sorry, is there a picture? i do not see any arrows.

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