NEETBiologyStructural Organisation in AnimalsMCQ+4 / −1
Earthworms have no skeleton but during
burrowing the anterior end becomes turgid and
acts as a hydraulic skeleton. It is due to:
- Acoelomic fluid
- Bgut peristalsis
- Cblood
- Dsetae
View written solutionFree
Correct answer: A
Earthworms have no skeleton but during burrowing, anterior end becomes turgid and acts as a hydraulic skeleton. It is due to coelomic fluid. The coelom is filled with an alkaline milky coelomic fluid. This coelomic fluid contains water, salts, proteins and 4 types of cells namely amoebocytes, mucocytes, circular cells and chloragogen cells.
More from Structural Organisation in Animals
- Which one of the following is the true description about an animal concerned?2008 · MCQ
- Which one of the following pairs of structures distinguishes a nerve cell from other types of cell ?2007 · MCQ
- In which one of the following preparations are you likely to come across cell junctions most frequently ?2007 · MCQ
- Areolar connective tissue joins-2006 · MCQ
- Mast cells secrete-2006 · MCQ
- Earthworms are -2006 · MCQ
- Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cell of the following. Which of the cells are least likely to be replaced by new cells -2005 · MCQ
- Mast cells of connective tissue contain -2004 · MCQ