
Match the following and choose correct combination.
Column I
Column II
i)
Cellular grade level
a)
Pheretima
ii)
Tissue grade level
b)
Schistosoma
iii)
Organ level
c)
Obelia
iv)
Organ system level
d)
Sycon

Important Questions on Structural Organization in Animals


Study the following statements
Compound epithelium forms the lining of the larger pancreatic ducts as stratified cuboidal epithelium
Cartilage is a vascular tissue surrounded by fibrous connective tissue sheath called perichondrium
Gap junctions in cardiac muscles permit electrical impulses to be conducted rapidly
Myelinated nerve fibres are found in grey matter of the central nervous system
Among the above, identify incorrect statements

Study the following statements and identify the correct statements-
Microglial cells keep the cerebrospinal fluid in the ventricles of brain in constant circulation
Arrector pili muscles are unstriated muscles
Basophils remove antigen-antibody complexes from the blood
Perichondrium is absent in fibrous cartilage


Reason : It is formed by fusion of cells

Label the parts corresponding to the alphabets in the given diagram given?

