Identify the Archaebacterium.

(a)

Acetobacter

(b)

Erwinia

(c)

Treponema

(d)

Methanobacterium

Retting of fibre is caused by __________ .

(a)

Clostridium tertium

(b)

E.coli

(c)

C.acetobutylicum

(d)

C.telani

Rice tungro is caused by ___________ .

(a)

fungi

(b)

bacteria

(c)

mycoplasma

(d)

viruses

The seven kingdom system of classification was proposed by _________

(a)

Coral Woese

(b)

R.H. Whittakar

(c)

John ray

(d)

Cavalier Smith

The haploid number of chromosome for an Angiosperm is 14, the number of chromosome in its endosperm would be _________

(a)

7

(b)

14

(c)

42

(d)

28

Selaginalla is the example for ___________

(a)

Plectostele

(b)

Haplostele

(c)

Mixed protostele

(d)

Actinostele

Example for negatively geotropic roots __________

(a)

Ipomoea, Dahlia

(b)

Asparagus, Ruellia

(c)

Vitis, Portulaca

(d)

Avicennia, Rhizophora

Metameric segmentation is the main feature of ______.

(a)

Annelida

(b)

Echinodermata 

(c)

Arthropoda

(d)

Coelenterata

At the venous end of the capillary bed, the osmotic pressure is _____.

(a)

Greater than the hydrostatic pressure

(b)

Result in net outflow of fluids

(c)

Results in net absorption of fluids

(d)

No change occurs

All of the following are associated with the myeline sheath except.

(a)

Faster conduction of nerve impulses

(b)

Nodes of Ranvier forming gaps along the axon

(c)

Increased energy output for nerve impulse conduction

(d)

Saltatory conduction of action potential