An egg in which the yolk is concentrated towards one pole is called

 1. telolecithal
 2. centrolecithal
 3. isolecithal
 4. mesolecithal

Sheathing of leaf bases and a ligule is a feature of
1. Musaceae
2. Germinate
3. Pteridophyte
4. Lilliaceae

Oxidative phosphorylation is formation of
1) NADPH2 in respiration
2) ATP in respiration
3) NADPH2 is photosynthesis
4) ATP in photosynthesis

 Maize can be propagated only by human agency because the

1) seed coat needs hard scraping
2) seeds are bound to the cob
3) seed is too tough for animals to feed on it
4) seed is too heavy for wind dispersal

Acid rain:

 (1) Is due to excess CO₂
 (2) Is due to excess O₂
 (3) Is a natural phenomenon
 (4) Is due to excess SO₂

When peacock eats snakes which eat insects thriving on green plants the peacock is

1) a primary consumer
2) a primary decomposer
3) final decomposer
4) the apex of the food pyramid

Interferon is

 1) Vector DNA
 2) Donar DNA
 3) Antiviral Protein
 4) Growth hormone

The free swimming Larva of Hydra is known as
1. Planaria Larva
2. Redia Larva
3. Planula Larva
4. Amphiblastula Larva

Malaria in man is caused by a protozoan parasite called:
1. plasmodium 
2. culex 
3. Female Anopheles 
4. Taenia solium

Hepatopancreas is present in
 1) Pheretima

 2) Freshwater prawn 

 3) Neresis 

 4) Ascaris