Pseudo stratified epithelium is found in;
1. Female reproductive system
2. Blood vessels
3. Passage of respiratory and male reproductive system
4. Digestive tract

Quiescent centres are found in

 1) all types of meristems  2) only in apical meristems
 3) only in root apex         4) only in shoot apex

There is no differentiation into cortex and stele in

 1) monocot root
 2) dicot stem
 3) monocot stem
 4) dicot root

Epiboly involves :
1. folding inwords 
2. rolling inwords 
3. Growth of one layer over another layer 
4. blastula formation 

In pteridophytes, phloem is without

1) Sieve cells
2) Sieve tubes
3) Companion cells
4) Both 2 and 3

The ultimate source of energy for the entire biosphere is

1) soil
2) the sun
3) the ocean
4) atmosphere

In animals, which occurs during the synthesis of larger, more complex organic molecules from smaller organic molecules?

1. Water is released.
2. Oxygen is released.
3. Nitrogen is absorbed.
4. Phosphorus is absorbed.

G1, S and G2 stages are seen in

 (1) Anaphase
 (2) Interphase
 (3) Metaphase
 (4) Prophase

Ethylene gas
1. is a saturated hydrocarbon
2. slows ddown ripening of apples
3. retards appartment ripening of tomatoes
4. speeds up maturation of tomatoes

A scientific name contains information about its:
 1) family & species
 2) genus & species
 3) phylum & order
 4) class & family