M C Q s D r i v e

Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

Of the following which one is not found in series proterostomia?
A Annelida
B Arthropoda
C Mollusea
D Echinodermata
Correct Answer: Echinodermata
Coelom that develops from the archenteron as outpouching is__________?
A Pseudocoelom
B Enterocoelom
C Schizocoelom
D None of these
Correct Answer: Enterocoelom
Of the following which one is not included in Proterostomes?
A Arthropods
B Hemichordates
C Annelids
D Molluses
Correct Answer: Hemichordates
Inner layers of the sponges are made up of__________?
A Pinacocytes
B Choanoderm
C Choanoytes
D Pinacoderm
Correct Answer: Choanoytes
Sperms are _________ in origin.
A Ectodermal
B Mesodermal
C Endodermal
D None of these
Correct Answer: Mesodermal
Gut in pseudocoelomates is made from___________?
A Ectoderm
B Mesoderm
C Endoderm
D All of these
Correct Answer: Endoderm
The skeleton of the sponges is in the form of variously shaped needle like structures called___________?
A Stripules
B Spicules
C Brails
D Spines
Correct Answer: Spicules
The internal buds are known as__________?
A Spicules
B Choanocytes
C Gemmules
D None of these
Correct Answer: Gemmules
Venus flower basket is also known as___________?
A Sycon
B Euplectella
C Leucoselenia
D Spongilla
Correct Answer: Euplectella
In acoelomates gut is ________ in origin.
A Ectodermal
B Endodermal
C Mesodermal
D None of these
Correct Answer: Endodermal