tell apart

This helps vendors when related species are difficult to tell apart and is expected to reduce mislabelling.

Side by side, Gonzalez said the two widows are fairly easy to tell apart — at least when it comes to adult females.

Scientists have shown that people are able to tell apart morning from evening depictions in paintings using simple and subtle colour clues in the image.

"But there is a lot we don't know -- especially the smaller nocturnal animals that can be difficult to tell apart from one another."

There are an estimated 48 different species of PACs, and they can be difficult to tell apart from harmless species like seaweeds because their morphology varies significantly when it comes to color, shape, and structure.