Structural Organisation in Plants and Animals
Structural Organization in Animals
In thyroid follicle which type of epithelial tissue is present
Read of following statements regarding different types of animal tissues and select the incorrect ones.
(i) Each fasciculus (or bundle of muscle fibres) is surrounded by an epithelial tissue covering called perimysium
(ii) Multi unit smooth muscles are present in ciliary and iris muscles in the eyes and muscles of the walls of large bloood vessels
(iii) Columnar epithelium present in gastric glands, intestinal glands, intestinal glands and pancreatic lubules, has a secretory role and is called as glandular epithelium
(iv) Epithelial tissue arises only from the ectoderm of embryo and is usually supplied with blood vessels.
Assertion : The cells of connective tissues except blood secrete fibres
Reason : Fibres provide strength, elasticity and flexibility to the tissue
Match the following with reference to cockroach and choose the correct option
A.B.C.D.PhallomereGonoporeSpermatophoreOvarioles(i)(ii)(iii)(iv)Chain of developing ovaBundles of spermOpening of the ejacultory ductThe external genitalia
In the given diagram if a section of bone tissue, certain parts have been indicated by alphabets. Select the answer in which these alphabets have been correctly matched with the parts which they indicate
Given is the figure of alimentary canal of earthworm. Select the option that correctly identifies the parts labelled as A to E