What do organisms require to grow, reproduce and regulate various body functions?

What is the name given to the amount of nutrients present in the soil at any given time?

Which of these varies in different kinds of ecosystems on a seasonal basis?

What happens to nutrients which are never lost from ecosystems?

What is the movement of nutrients through the various components of an ecosystem known as?

What is the nutrient cycle alternatively called?

What does a nutrient cycle involve?

How many categories can a nutrient cycle be divided into?

What are the essential elements required by organisms for body-building and metabolism?

Where is the gaseous type of the nutrient cycle located?

Where is the sedimentary type of the nutrient cycle located?

What do the environmental factors, (e.g., soil, moisture, pH, temperature etc.) regulate?

The main difference between the water cycle and all the other biogeochemical cycles is that water_______.

What is the function of the reservoir that is the atmosphere and the Earth’s crust?

Limestone and dolomite are the reservoirs of which cycle?

Nutrient cycles are inclusive of both living and nonliving components and involve…

Mycorrhiza helps in the absorption of:

One of the nutrient cycles moves from an atmospheric gaseous form to the soil through both abiotic and biotic processes, moves through the food web, then is returned to the soil or to the atmosphere. Which cycle fits this description?

The formula for nitrate is _______.

Which biogeochemical cycle is least dependent on biotic processes?

Which of the following nutrients has only a short-term biogeochemical cycle?

Saprobionts such as bacteria (and fungi) act as:

Saprobionts are a form of (…), but are not to be confused with (…) which digest internally.

In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen?

The formula for nitrite is _________.