This rare tree is threatened by a number of processes.

This river plant is threatened by a number of processes that affect its environment.

These are things like the number of open files or processes per user and so on.

The consensus problem requires agreement among a number of processes for a single data value.

There are a number of natural processes that can form lakes.

A number of processes are involved in this level (Wright, 1989).

Free radicals play an important role in a number of biological processes.

This balance can be changed by a number of processes.

It is threatened by a number of processes and human activities.

It is found within a diverse number of natural processes.