Which among the following are the examples of class Aves?

1) Parrot
2) Owl
3) Kite
4) All of the above

Which of the following does NOT affect the heart beat rate
1. Adrenalin
2. Acetylcholine
3. Non-adrenalin
4. Insulin

The third link in the chain of inspection is
 1) Direct transmission
 2) Indirect transmission
 3) Susceptible host
 4) Human reservoir

Growth in plants at root apex and shoot apex takes place by
1. basal meristem
2. apical meristem
3. intercalary meristem
4. lateral meristem

Select the correct statements from the following.
I. Endosperm is generally triploid in angiosperms.
II. All angiosperms have monosporic and endosporic embryo sac.
III. Angiosperms are characterised by double-fertilization.
IV. All angiosperms show-indirect pollination and siphonogamy.

1) I, II and III
2) II, III and IV
3) I, III and IV
4) I, II, III and IV

The permissible level of noise
 1) 81-120 dB
 2) 81-102-dB
 3) 81-180-dB
 4) 180-280 dB

Certain bacteria living in a human's large intesting help to produce vitamin K. This relationship is an example of

1. animal parasitism
2. plant parasitism
3. commensalism
4. mutualism

Which system of classification is considered as a modern phylogenetic ?
1) Bentham and Hooker's
2) Linneaus'
3) Huchinsons'
4) Engler and prantl's

Conjugation is a type of

1) Isogamy
2) Anisogamy
3) Oogamy
4) Asexual reproduction

The bast fibers occurring in Phloem are the

 1) parenchyma cells
 2) Collenchyma cells
 3) aerenchyma cells
 4) sclerenchyma cells