A female will choose a male based on certain characteristics of his call.

Like other nations, they had certain characteristics which you could identify from the past and expect to find in the future.

There are certain characteristics that any national curriculum should have.

Not really true, but they do all have certain characteristics in common.

Each journal creates its own process, but they have certain common characteristics in general.

In order for birds to balance these forces, certain physical characteristics are required.

Your genes bear certain characteristics which I may find of use.

From the beginning, certain characteristics of what was to become a typical season emerged.

"Do entrepreneurs have certain characteristics that cause them to be successful?"

The process passes on certain characteristics to plants and animals.