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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.

All Topics  1525

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
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