trabeculae
The nail matrix forms the nail and lies beneath the lunule.
compact bone tissue and spongy bone tissue
Sea arches and seastacks
pins
The sea first forms sea caves then sea arches then sea stacks and finally it forms sea stumps which will eventually disappear.
Arrangements fall under few categories such as principle compressive group, secondary compressive group, principle tensile group, and sometimes a greater trochanter group. These groups specifically describe the orientation of trabeculae in spongy bone. They resemble lines of symmetry or fibers that extend vertically or transversally. A picture will help!
Dot matrix printers
The plural forms for the noun matrix are matrices and matrixes, both are accepted.
Pumice is a light and spongy rock that forms from lava that is highly frothy with gas bubbles. It is often used in beauty treatments and horticulture due to its porous nature.
Laccolith
Collagen is the fibrous protein that forms the matrix of skin, ligaments, tendons, and bones. It provides structural support and strength to these tissues.
There are many differences between Struts 1.3 and Struts 2.0-1)Action Class-In Struts 1.3, Action Classes needs to extend an abstract base class. But in Struts 2.0, Action classes needs to implement an Action interface.2)Thread-Safety-In Struts 1.3, actions are singletons and thread-safe.In Struts 2.0, action objects are instantiated for each request.3)In Struts 1.3, actions must share same lifecycle.In Struts 2.0, every action has different lifecycle.4)In Struts 1.3, servlet action have dependencies on servlet API.In Struts 2.0, these dependencies have been removed.5)Struts 1.3 uses Action Forms to take the input.Struts 2.0 use Action Properties for taking inputs.As Struts 2.0 is improved version of Struts 1.3, so there are uncountable similarities between them. All the basic features are same in both.