The mouth contains an organ for feeding, called radula in animals belonging to which phylum ?

Which among the following is the second largest animal phylum ?

Which one among the following is known as 'Living fossil'?

Which among the following is known as 'Gregarious pest'?

The largest phylum of Animal kingdom

Members of which phylum are also known as roundworms

The body of the aschelminthes is --- in cross-section.

Select correct statements regarding human respiration:

(i) The typical oxygen saturation level of hemoglobin in arterial blood under normal physiological condition is 95-100%.

(ii) The area of the brain primarily responsible for generating basic rhythm of breathing is cerebrum.

(iii) The primary drive for respiration under normal condition is controlled by the level of CO2 in the blood. 

Increased cardiac output required during extra physical effort causes severe chest pain which radiate to arms, chest and jaw called:

Which of the following statements is/are correct about blood cholesterol?

(i) Excessive blood low-density lipoproteins (LDL) are harmful to health.

(ii) High density lipoproteins can build up in arterial walls leading to atherosclerosis.

(iii) Cholesterol is not needed for proper functioning of body. 

The Vitamin that play a crucial role in maintenance and repair of epithelial tissue by promoting cell differentiation and proliferation is:

Platyheminthes are acoelomate animals with --- level of organisation.

The property of a living organism to emit light is known as

Ctenophores are organisms with --- level of organisation.

What are known as sea walnuts or comb jellies ?

Medusa produces polyp by

Polyp produces medusa by

What is known as Brain coral ?

What is known as Sea-fan ?

What is known as Sea-pen ?

What is known as Sea anemone ?

Whiat is known as Portuguese man-of-war ?

The phenomenon where Cnidarians exhibit an alternation of generation is called

Umbrella-shaped and free-swimming basic body form of Cnidarians

Sessile and cylindrical basic body form of Cnidarians

The two basic body forms of Cnidarians

Cnidarians exhibit --- level of organization.

The name cnidaria is derived from ---.

ശരീരത്തിലെ കാര്ബോഹൈഡ്രേറ്റിന്റെ പ്രധാന പ്രവർത്തനം ഏതാണ് ?

ചിക്കൻ പോക്‌സ് വൈറസിന്റെ ശാസ്ത്രീയനാമം എന്താണ് ?

ഏതു ഗ്രന്ഥിയാണ് മനുഷ്യശരീരത്തിലെ ഉറക്കരീതികളെ നിയന്ത്രിക്കുന്നത് ,ഇത് ബോഡി ക്ലോക്ക് എന്ന് അറിയപ്പെടുന്നു :

Sponges reproduce asexually by means of --- and sexually by means of --- .

The cells that line the spongocoel and the canals in sponges

Which among the following shows the correct pathway of water transport in sponges ?

Members of Porifera phylum are commonly known as

Animals without notochord are called

Animals with notochord are called

A mesodermally derived supporting rod formed on the dorsal side during embryonic development in some animals is known as

The phenomenon in which the body or organs is externally and internally divided into repeated segments is called

When the coelome arises from mesoderm, such animals are called

When the body wall is not filled by mesoderm, such animals are called

When the space between the body wall and digestive cavity is filled with matrix, such animals are called

Based on the nature of coelom, animals are classified into

Coelom is seen between ---- & ----.

The cavity lined by mesoderm is known as

The undifferentiated jelly like layer present between ectoderm and endoderm is known as

The germ layers found in triploblastic animals are:

1. endoderm
2. ectoderm
3. mesoderm

The germ layers found in diploblastic animals are:

1. endoderm
2. ectoderm
3. mesoderm

Based on the number of germ layers, animals are classified into:

1. Monoblastic
2. Diploblastic
3. Triploblastic

The layers of embryo from which all the body organs are formed is called