Structural Organisation in Animals · Question 68

If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is

1. coelomic fluid
2. haemolymph
3. slimy mucus
4. excretory fluid

Which one of the following correctly describes the location of some body parts in the earthworm Pheretima?

1. Two pairs of testes in 10th and 11th segments.
2. One pair of ovaries attached at intersegmental septum of 14th and 15th segments.
3. Two pairs of accessory glands in 16–18 segments
4. Four pairs of spermathecae in 4–7 segments

Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?

1. Biceps of upper arm – smooth muscle fibres
2. Iris – Involuntary smooth muscle
3. Abdominal wall – smooth muscle
4. Heart wall – Involuntary unstriated muscle

The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is :

1. Cuboidal
2. Glandular
3. Ciliated
4. Squamous

The cell junctions called tight, adhering and gap junctions are found in :

1. Connective tissue
2. Neural tissue
3. Epithelial tissue
4. Muscular tissue

The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in -

1. vertebrae
2. tip of the nose
3. ear ossicles
4. nails

Earthworms have no skeleton but during burrowing the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to:

1. coelomic fluid
2. gut peristalsis
3. blood
4. setae

Which one of the following is the true description about an animal concerned?

1. Frog — Body divisible into three regions-head, neck and trunk
2. Rat — Left kidney is slightly higher in position than the right one
3. Earthworm — The alimentary canal consists of a sequence of pharynx, oesophagus, stomach, gizzard and intestine
4. Cockroach — 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)

In which one of the following preparations are you likely to come across cell junctions most frequently?

1. Thrombocytes
2. Tendon
3. Hyaline cartilage
4. Ciliated epithelium

Bowman's glands are found in

1. juxtamedullary nephrons
2. olfactory epithelium
3. external auditory canal
4. cortical nephrons only