Search results
Results from the WOW.Com Content Network
For example, the word stylet or stomatostyle is used for the primitive piercing mouthparts of some nematodes [1] and some nemerteans. In these groups the stylet is a hardened protrusible opening to the stomach. These stylets are adapted for the piercing of cell walls and usually function by providing the operative organism with access to the ...
In a multicellular organism, an organ is a collection of tissues joined in a structural unit to serve a common function. [1] In the hierarchy of life, an organ lies between tissue and an organ system. Tissues are formed from same type cells to act together in a function. Tissues of different types combine to form an organ which has a specific ...
[1] [6] Hence, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they use. [ 7 ] [ 8 ] [ 9 ] Like other scientists, biologists use the scientific method to make observations , pose questions, generate hypotheses , perform experiments, and form conclusions about the world ...
Biological databases are stores of biological information. [1] The journal Nucleic Acids Research regularly publishes special issues on biological databases and has a list of such databases. The 2018 issue has a list of about 180 such databases and updates to previously described databases. [2]
3 (11): 871– 6. doi:10.1038/nrm953. ISSN 1471-0072. PMID 12415304. S2CID 2844447. Motta, P M (2001). "George Emil Palade and Don Wayne Fawcett and the development of modern anatomy, histology and contemporary cell biology". Italian Journal of Anatomy and Embryology. 106 (2 Suppl 1): XXI– XXXVIII. ISSN 1122-6714. PMID 11730003.
Clasa I: compulsory 8–9 Clasa II: compulsory 9–10 Clasa III: compulsory 10–11 Clasa IV: compulsory Gymnasium (Middle school) Age Grade Type 11–12 Clasa V: compulsory 12–13 Clasa VI: compulsory 13–14 Clasa VII: compulsory 14–15 Clasa VIII: compulsory Lyceum (Secondary School) Age Grade Type 15–16 Clasa IX: compulsory 16–17 ...
The cleaved cDNA downstream from the cleavage site is then discarded, and the remaining immobile cDNA fragments upstream from cleavage sites are divided in half and exposed to one of two adaptor oligonucleotides (A or B) containing several components in the following order upstream from the attachment site: 1) Sticky ends with the AE cut site ...
The internal environment (or milieu intérieur in French; French pronunciation: [mi.ljø ɛ̃.te.ʁjœʁ]) was a concept developed by Claude Bernard, [1] [2] a French physiologist in the 19th century, to describe the interstitial fluid and its physiological capacity to ensure protective stability for the tissues and organs of multicellular organisms.