Skeleton
...ome up with various solutions. Most molluscs have
calcareous shells and as they grow, the diameter of the shell is enlarged without altering its shape. On the other hand, arthropods shed their exoskeletons to grow, a process known as molting (or ecdysis ). During molting the arthrpod breaks down their old ...
Skeleton
...tinia. Order of coelenterates, usually producing
calcareous skeleton s with hexameral symmetry Scope for growth. The surplus of energy available for growth beyond that required for maintenance ... Full article >>> actin - protein which when polymerized forms microfilament s, part of the ...
Shell
...tortoises, the exoskeleton of crustacea ns, the
calcareous plates of echinoderms, the outermost membranes o... Full article >>> Most molluscs have
calcareous shell s and as they grow, the diameter of the shell is enlarged without altering its shape. On th...
Sense
...d to sense direction of gravity. statolith Small
calcareous body resting on tufts of cilia in the statocyst. statolith See statocyst. Full article >>> Mis sense mutation s in presenilin 1 (PS1) and presenilin 2 (PS2) are associated with early-onset familial Alzheimer's disease which display...
Secretin
...d the skeletal construction of hermatypic corals,
calcareous algae , and other calcium carbonate- secretin g organ isms ... Full article >>>...
Protozoa
...oa n group, individuals of which usually secrete a
calcareous test; both planktonic and benthic representatives Founder principle. A small colon izing population is genetically unrepresentative of the source of population ... Full article >>> Members of the protozoa l species Plasmodium, ...
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