Uric acid is the chief nitrogenous component of the excretory products of 

• man

• earthworm

• cockroach

• cockroach

Mannitol is the stored food in of

• Chara

• Porphyra

• Fucus

• Fucus

Stroma in the chloroplasts of higher plants contains

• light -independent reaction enzymes

• Light -dependent reaction enzymes

• ribosomes

• ribosomes

Which one of the following has haplontic life cycle?

• Funaria

• Polytrichum

• fully developed foetus and placenta

• fully developed foetus and placenta

Elbow joint is an example of 

• pivot joint

• hinge joint

• gliding joint

• gliding joint

The correct sequence of plants in a hydrosere is

• Oak → Lantana → scirpus→Pistia→Hydrilla→Volvox

• Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak
  

• Pista → Volvox → Scirpus → Hydrilla → Oak → Lantana

• Pista → Volvox → Scirpus → Hydrilla → Oak → Lantana

Which one onf the following groups of animals is bilaterally symmetrical and triploblastic?

• Coelenterates (cnidarians)

• Aschelminthes (roundworms)

• ctenophores

• ctenophores

The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is 

• cuboidal

• glandular

• ciliated

• ciliated

A change in the amount of yolk and its distribution in the egg will effect

• formation of a zygote

• the pattern of cleavage

• number of blastomeres produced

• number of blastomeres produced

Which one of the following pairs of food components in humans reaches the stomach totally undigested?

• Protein and starch

• Starch and fat

• Fat and cellulose

• Fat and cellulose