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Pre-Lab: Leaf Breakdown

Q: How do fungi as decomposers benefit plants?

Essential nutrients are returned to the soil through decomposition. This process allows plants to absorb: Nitrogen Phosphorus Other essential elements These nutrients are crucial for plant growth and health.

Q: Which organisms are considered producers in ecosystems?

In ecosystems, producers include: Photosynthetic protists (e.g., algae) Cyanobacteria (photosynthetic bacteria) Plants All of these organisms play a vital role in converting sunlight into energy.

Q: What biotic factors influence decomposition?

Biotic factors affecting decomposition include: Mushrooms growing within the JMR Reserve (fungi) Abundance of detritivores and grazers feeding on dead matter Leaf structure and composition (toughness, lignin content) These factors are crucial for the decomposition process.

Q: What is the difference between materials and energy in ecosystems?

In ecosystems: Materials (nutrients) are cycled continuously. Energy flows in one direction (from sun → producers → consumers → lost as heat). This distinction is vital for understanding ecosystem dynamics.

Q: Which leaves lose the most tissue during decomposition?

The leaves that decompose the quickest are: Salix sp. (willow leaves) These leaves are softer, less lignified, and more palatable compared to tougher leaves like eucalyptus.