Structural Organisation in Animals · Question 53

The supportive skeletal structures in the human external ears and in the nose tip are examples of

1. Ligament
2. Areolar tissue
3. Cartilage
4. Bone

The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and function ? [Figure]

1. (A) Tissue Columnar epithelium, Location Nephron, Function Secretion and absorption
2. (C) Tissue Collagen fibres, Location Cartilage, Function Attach skeletal muscles to bones
3. (B) Tissue Glandular epithelium, Location Intestine, Function Secretion
4. (D) Tissue Smooth muscle tissue, Location Heart, Function Heart contraction

Pheretima and its close relatives derive nourishment from

1. sugarcane roots
2. decaying fallen leaves and soil organic matter
3. soil insects
4. small pieces of fresh fallen leaves of maize, etc.

Compared to those of humans, the erythrocytes in frog are :

1. Without nucleus but with haemoglobin
2. Very much smaller and fewer
3. Nucleated and with haemoglobin
4. Nucleated and without haemoglobin

Select the correct statement from the ones given below with respect to Periplaneta americana

1. Males bear a pair of short thread like anal styles
2. There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
3. Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives
4. Grinding of food is carried out only by the mouth parts

Consider the following four statements (A–D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F). Statements:

1. A-T, B-F, C-F, D-T
2. A-T, B-T, C-F, D-F
3. A-F, B-F, C-T, D-T
4. A-F, B-T, C-T, D-F

Ureters act as urinogenital ducts in

1. human males
2. human females
3. both male and female frogs
4. male frogs

The type of muscles present in our

1. heart is involuntary and unstriated smooth muscles
2. intestine is striated and involuntary
3. thigh is striated and voluntary
4. upper arm is smooth muscle and fusiform in shape.

Frogs differ from humans in possessing :

1. hepatic portal system
2. paired cerebral hemispheres
3. nucleated red blood cells
4. thyroid as well as parathyroid

The cells lining the blood vessels belong to the category of :

1. Squamous epithelium
2. Columnar epithelium
3. Connective tissue
4. Smooth muscle tissue