Sycon (Scypha), Spongilla (Fresh water sponge) and Euspongia (Bath sponge) are examples of which Phylum?

• Coelenterata

• Platyhelminthes

• Ctenophora

• Porifera

A multicellular organism grows by ..............

• cell addition

• cell explosion

• cell implosion

• cell division

The male sex organs in a flower is the ..............

• zoospores

• stamen

• pistil

• chlorophyceae

In animals like Annelids, Molluscs, organs have associated to form functional systems, each system concerned with a specific physiological function. This pattern is called ________ system level of organization.

• organ

• open

• closed

• coelom

385.

Who discovered Circulatory System?

• Thomas Edison

• William Harvey

• Robert Hooke

• Robert Boyles

............. influences are the rate of weathering and humus in soil formation.

• Flora & Fauna

• Time

• Parent rock

• Climate

A healthy adult man has, on an average, ............ (in millions) of RBC mm^-3 of blood.

• 5 - 5.5

• 4 - 4.5

• 3 - 3.5

• 6 - 6.5

The female sex organs in a flower is the ............

• Zoospores

• Stamen

• Pistil

• Chlorophyceae

Animals in which the cells are arranged in two embryonic layers are called ________.

• Diploblastic

• Extoderm

• Tripoblastic

• Endoderm

................ being a higher category, is the assemblage of families which exhibit a few similar characters.

• Order

• Species

• Genus

• Class