Bilaterian vs Null - What's the difference?
bilaterian | null |
(biology) Any animal that has bilateral symmetry, collectively grouped in the clade Bilateria.
* 2005 , N. S. Sharma, Continuity And Evolution Of Animals ,
* 2007', J. W. Valentine, ''Seeing ghosts: Neoproterozoic '''bilaterian body plans'', Patricia Vickers-Rich, Patricia Komarower (editors), ''The Rise and Fall of the Ediacaran Biota , [page 372],
* 2010 , José Xavier-Neto, Marcos Sawada Simoes-Costa, Rodrigo Abe Castro, Hozana Andrade Castillo, Allysson Coelho Sampaio, Ana Paula Azambuja, Chapter 1.1: Evolutionary Origins of Hearts'', Nadia Rosenthal, Richard P. Harvey (editors), ''Heart Development and Regeneration , Volume 1,
A non-existent or empty value or set of values.
Zero]] quantity of [[expression, expressions; nothing.
Something that has no force or meaning.
(computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
(computing) the attribute of an entity that has no valid value.
One of the beads in nulled work.
(statistics) null hypothesis
Having no validity, "null and void"
insignificant
* 1924 , Marcel Proust, Within a Budding Grove :
absent or non-existent
(mathematics) of the null set
(mathematics) of or comprising a value of precisely zero
(genetics, of a mutation) causing a complete loss of gene function, amorphic.
As nouns the difference between bilaterian and null
is that bilaterian is (biology) any animal that has bilateral symmetry, collectively grouped in the clade bilateria while null is zero, nil; the cardinal number before einn.bilaterian
English
(Bilateria)Noun
(en noun)page 91,
- Whatever the phylogenetic relationship among bilaterians' and the diploblastic phyla, there was clearly a significant expansion in genomic information within the internode that connects the ' bilaterian clade to other branches.
- Lacking body cavities and both circulatory and excretory organs, with subepidermal nerve plexuses and 'brains' represented, if at all, by thickened anterior commissures, and with simple reproductive set-ups, acoels come close to representing a model stem ancestor for bilaterians .
page 12,
- In most bilaterians , the gut musculature and most vascular muscles derive from the mesoderm.
Derived terms
* urbilateriannull
English
Noun
(en noun)- (Francis Bacon)
- Since no date of birth was entered for the patient, his age is null .
Adjective
(en adjective)- In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.