Structural Organisation in Animals

Which of the following features is used to identify a male cockroach from a female cockroach?

1. Forewings with darker tegmina
2. Presence of caudal styles
3. Presence of anal cerci
4. Presence of a boat-shaped sternum on the 9th abdominal segment

Select the correct route for the passage of sperms in male frogs :

1. Testes Vasa efferentia Kidney Seminal vesicle Urinogenital duct Cloaca
2. Testes Vasa efferentia Bidder's canal Ureter Cloaca
3. Testes Vasa efferentia Kidney Bidder's canal Urinogenital duct Cloaca
4. Testes Bidder's canal Kidney Vasa efferentia Urinogenital duct Cloaca

Frog’s heart when taken out of the body continues to beat for some time. Select the best option from the following statements.

1. D only
2. A and B only
3. C only
4. C and D only

Which type of tissue correctly matches with its locations ?

1. Tissue Smooth muscle , Location Wall of intestine
2. Tissue Areolar tissue, Location Tendons
3. Tissue Cuboidal epithelium, Location Lining of stomach
4. Tissue Transitional epithelium, Location Tip of nose

In male cockroaches, sperms are stored in which part of the reproductive system ?

1. Vas deferens
2. Seminal vesicles
3. Testes
4. Mushroom glands

Smooth muscles are

1. involuntary, cylindrical, striated
2. involuntary, fusiform, non-striated
3. voluntary, spindle-shaped, uninucleate
4. voluntary, multinucleate, cylindrical

The function of the gap junction is to -

1. facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.
2. separate two cells from each other
3. stop substance from leaking across a tissue
4. performing cementing to keep neighbouring cells together

The terga, sterna and pleura of cockroach body are joined by :

1. Cartilage
2. Cementing glue
3. Arthrodial membrane
4. Muscular tissue

Choose the correctly matched pair :

1. Adipose tissue – Dense connective tissue
2. Areolar tissue – Loose connective tissue
3. Tendon – Specialized connective tissue
4. Cartilage – Loose connective tissue

Choose the correctly matched pair:

1. Inner surface of bronchioles - squamous epithelium
2. Moist surface of buccal cavity - Glandular epithelium
3. Inner lining of salivary ducts - Ciliated epithelium
4. Tubular parts of nephrons - Cuboidal epithelium