Search results
Results from the WOW.Com Content Network
[1]: 226 Octopods only have four pairs of sucker-coated arms, as the name suggests, though developmental abnormalities can modify the number of arms expressed. [ 94 ] The tentacle consists of a thick central nerve cord (which must be thick to allow each sucker to be controlled independently) [ 95 ] surrounded by circular and radial muscles.
This example is the most basic and includes unique references for each citation, showing the page numbers in the reference list. This repeats the citation, changing the page number. A disadvantage is that this can create a lot of redundant text in the reference list when a source is cited many times. So consider using one of the alternatives ...
Cephalopod limbs bear numerous suckers along their ventral surface as in octopus, squid and cuttlefish arms and in clusters at the ends of the tentacles (if present), as in squid and cuttlefish. [9] Each sucker is usually circular and bowl-like and has two distinct parts: an outer shallow cavity called an infundibulum and a central hollow ...
The major divisions of Coleoidea are based upon the number of arms or tentacles and their structure. The extinct and most primitive form, the Belemnoidea, presumably had ten equally-sized arms in five pairs numbered dorsal to ventral as I, II, III, IV and V. More modern species either modified or lost a pair of arms.
The easiest way to start citing on Wikipedia is to see a basic example. The example here will show you how to cite a newspaper article using the {} template (see Citation quick reference for other types of citations). Copy and paste the following immediately after what you want to reference:
Decapodiformes is a superorder of Cephalopoda comprising all cephalopod species with ten limbs, specifically eight short arms and two long tentacles.It is hypothesized that the ancestral coleoid had five identical pairs of limbs, and that one branch of descendants evolved a modified arm pair IV to become the Decapodiformes, while another branch of descendants evolved and then eventually lost ...
Rare examples of double and bilateral hectocotylization have also been recorded in incirrate octopuses. [ 7 ] [ 8 ] In male seven-arm octopuses ( Haliphron atlanticus ), the hectocotylus develops in an inconspicuous sac in front of the right eye that gives the male the appearance of having only seven arms.
APA style (also known as APA format) is a writing style and format for academic documents such as scholarly journal articles and books. It is commonly used for citing sources within the field of behavioral and social sciences , including sociology, education, nursing, criminal justice, anthropology, and psychology.