Biology Mcqs

Circulatory system is open type in all of the following except:___________?

• (A)  Arthropoda
• (B)  Gastropoda
• (C)  Pelecypoda
• (D)  Cephalopoda

Answer

Submitted By :Ali Uppal

Aquatic arthropods respire through__________?

• (A)  Spiracles
• (B)  Gills
• (C)  Book lungs
• (D)  Both b and c

Answer

Submitted By :Ali Uppal

Of the following which one is non-cellular in most cases in animals?

• (A)  Mesenchyme
• (B)  Sclerenchyma
• (C)  Chlorenchyma
• (D)  Mesoderm

Answer

Submitted By :Ali Uppal

In some cases the blastomere can produce complete embryo the cleavage will be___________?

• (A)  Spiral and determinate
• (B)  Radial and indeterminate
• (C)  Spiral and indeterminate
• (D)  Radial and determinate

Answer

Submitted By :Ali Uppal

The animals in which coelom is formed due to splitting of mesocerm are known as____________?

• (A)  Pseudocoelous
• (B)  Schizocoelous
• (C)  Enterocoelous
• (D)  Emphicoelous

Answer

Submitted By :Ali Uppal

Coelom that develops from the archenteron as outpouching is__________?

• (A)  Pseudocoelom
• (B)  Enterocoelom
• (C)  Schizocoelom
• (D)  None of these

Answer

Submitted By :Ali Uppal

Of the following which one is not included in Proterostomes?

• (A)  Arthropods
• (B)  Hemichordates
• (C)  Annelids
• (D)  Molluses

Answer

Submitted By :Ali Uppal

Inner layers of the sponges are made up of__________?

• (A)  Pinacocytes
• (B)  Choanoderm
• (C)  Choanoytes
• (D)  Pinacoderm

Answer

Submitted By :Ali Uppal

Sperms are _________ in origin.

• (A)  Ectodermal
• (B)  Mesodermal
• (C)  Endodermal
• (D)  None of these

Answer

Submitted By :Ali Uppal

Gut in pseudocoelomates is made from___________?

• (A)  Ectoderm
• (B)  Mesoderm
• (C)  Endoderm
• (D)  All of these

Answer

Submitted By :Ali Uppal