An exoskeleton is the external skeleton that supports and protects an animal's
body, in contrast ... Some organisms, such as some foraminifera, agglutinate
exoskeletons by sticking grains of san...
Organisms with external skeletons are exemplified by? Organisms with external
... Do amphibians have an internal or external skeleton? Frogs have an internal ...
Animals can have internal or external skeletons - while some do not have a
skeleton at all. Insects have an external skeleton made of chitin. Sharks have an
3.6 Organisms respond to changes in their internal and external environments ...
The protective effect of a simple reflex, exemplified by a three-neurone simple
reflex. ... Muscles act in antagonistic pairs against an incompressible skeleton.
Nov 7, 2013 ... Biomineralized skeletons of fossil organisms have been used to obtain ... years
ago and is exemplified by a group of extinct arthropods called trilobites. ..... (C)
Microstructure of the eggshell, external surface to top of page ...
Jul 1, 2014 ... Developmental data are not peculiar to living organisms, and they are ... methods
to reconstruct development of organs is exemplified by the study of the .... growth)
like tubercles in the external dermal skeleton of many fishes, ...
Sep 10, 2010 ... However, how cells receive and integrate external signals leading to gene ... and
the presence of DNA response elements (exemplified by BCE-1, ... 1995) and
gene regulation in adult organisms (Bissell and Hall, 1987; ...
May 30, 2000 ... Several microscopic marine organisms make themselves shells -- strictly
speaking, external skeletons (exoskeletons) that enclose their soft bodies. ...
Another common patterning method in nature is exemplified by the stripes ...