Radical leaves are seen in
 1) Tridax
 2) Chrysanthimus
 3) Launaea
 4) Helianthus

Black arm of cotton can be controlled by

1) soil treatment
2) fumigation
3) eradication of weed hosts
4) seed treatment

How many mutations have been reported in Drosophila now?
 1) 300
 2) 500
 3) 200
 4) 400

Which of the following is wrong?
 
 1) When Cambium is present the vascular bundle is open
 2) Bundle cap is formed of schlerenchyma
 3) The Cambium of the vascular bundle is called Inter fascicular Cambium
 4) The xylem in the Stem is endarch

Immunoglobulin is a kind og
 1) Physical agent
 2) Biological agent
 3) Immunising agent
 4) chemical agent

A snake feeding on a rat is an example for:

 (1)Primary consumer or  herbivore
 (2)Secondary consumer  and primary carnivore
 (3)Teritary consumer  and secondary  carnivore
 (4) Primary consumer  and primary  carnovore

Breeders have developed a variety of chicken that has no feathers. Which methods were most likely used to produce this variety?

1. artificial selection and inbreeding
2. grafting and hybridization
3. regeneration and incubation
4. vegetative propagation and binary fission

One of the following is not an example for prey- Predator food chain:

(1)Mangroves --> Shedleaves --> Detritus--> Shrimps--> Small Fishes--> Large Fishes
(2)Grass--> Grasshopper--> Lizard--> Hawk
(3)Green plants--> Deer--> Tiger
(4)Seeds--> Rhodents--> Snakes--> Mongoose

Based on the fact that a watermelon contains many seeds, what can be inferred about a normal flower of a watermelon plant?

1. It contains many sepals and petals.
2. It contains very large anthers.
3. It contains a large number of ovules.
4. It contains a large number of stamens.

 In which vertebra of the rabbit, the neural spine is long and directed backwards ?

 1. Thoracic
 2. Lumbar
 3. Cervical
 4. Sacral