Frames
Mountains located closely together are called a mountain range.
The condition of material closely packed together is called "dense" or "compact."
explain how four species of lizards all closely related came to be separate species on a Caribbean island.
Clustering
The measurement of how closely particles are packed together is usually by state of matter. Gasses are measured as have particles that are further apart than liquids or solids for example.
The ability of a telescope to separate 2 closely spaced stars is called resolving power or angular resolution. This refers to the telescope's ability to distinguish fine details in an image, such as two closely spaced objects.
Archaea are closely related to Bacteria, and together with Eukarya, they are the three domains of life. While Archaea and Bacteria share some similarities, such as lacking a nuclear membrane and having circular DNA, they also have distinct genetic and biochemical differences that separate them as two distinct domains.
compacted
Clustering
Threes
Yes.
Montage