Question

natural fluctuations in earths systems can affect ecosystems by: (1 point)
changing temperature, precipitation, or species
keeping conditions exactly the same
causing no effect at all
making them disappear forever

Explanation:

Natural fluctuations in Earth's systems (like climate cycles) alter abiotic factors such as temperature and precipitation, which in turn drive changes in species distribution, abundance, or composition within ecosystems. The other options are incorrect: fluctuations do not keep conditions static, do have effects, and do not universally make ecosystems disappear forever.

Answer:

Changing temperature, precipitation, or species