Collocations for marked - adj.

be
become

extremely, fairly, very, etc.
especially, particularly, strongly
There is a strongly marked difference between the two creatures.

be

clearly
The animal's tail has clearly marked stripes.

heavily
Most cranes lay two heavily marked eggs.

beautifully, brightly

with
These trout are beautifully marked with bright red spots.

Marked is used with these nouns:
accent, bias, change, contrast, decline, decrease, departure, deterioration, difference, discrepancy, drop, effect, expansion, fall, improvement, increase, influence, preference, reduction, reluctance, resemblance, shift, similarity, tendency, trail, trend, variation