Identify the Archaebacterium.

(a)

Acetobacter

(b)

Erwinia

(c)

Treponema

(d)

Methanobacterium

Living organisms constitute __________

(a)

Living world

(b)

Non-living world

(c)

Animal kingdom

(d)

Plant kingdom

Curcuma amada, Curcuma domestica, Asparagus, Maranta are example of __________

(a)

Tuberous root

(b)

Beaded root

(c)

Moniliform root

(d)

Nodulose root

In Pheretima locomotion occurs with help of ______.

(a)

circular muscles

(b)

longitudinal muscles and setae

(c)

circular, longitudinal muscles and setae

(d)

parapodia

Buccopharyngeal respiration in frog ______.

(a)

is increased when nostrils are closed

(b)

Stops when there is pulmonary respiration

(c)

is increased when it is catching fly

(d)

stops when mouth is opened.

CO₂ is transported through blood to lungs as _____.

(a)

carbonic acid

(b)

oxyhaemoglobin

(c)

carbamino haemoglobin

(d)

carboxy haemoglobin

Dub sound of heart is caused by _______.

(a)

Closure of atrio-ventricular valves

(b)

Opening of semi-lunar valves

(c)

Closure of semi -lunar values

(d)

Opening of atrio-ventricular valves

The functional unit of a muscle fibre is ______.

(a)

sarcomere

(b)

sarcoplasm

(c)

myosin

(d)

actin

Which of the following gland is related with immunity?

(a)

Pineal gland

(b)

Adrenal gland

(c)

Thymus

(d)

Parathyroid gland

Induced breeding technique is used in ______.

(a)

Marine fishery

(b)

Capture fishery

(c)

Culture fishery

(d)

Inland fishery