Biology 1525 MCQs [All-Courses]

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.

The drfinite shape to ciliates is given by____________?

A Pellicle

B Penicle

C Calcium

D Cell wall

Review Detailed Answer

Correct Answer: Pellicle

Enteron in coelenterates acts as___________?

A Digestive cavity

B Body cavity

C Transporting cavity

D all of these

Review Detailed Answer

Correct Answer: all of these

Porifera range in size from__________?

A Few millimeter wide to more than one meter tall

B Few centimeter wide to more than one meter tall

C Few decimeter wide to more than one meter tall

D One meter wide to more than millimeter tall.

Review Detailed Answer

Correct Answer: Few millimeter wide to more than one meter tall

Coelom is lined by__________?

A Parietal mesoderm

B Visceral mesoderm

C Mesoderm

D Both A & B

Review Detailed Answer

Correct Answer: Both A & B

Of the following which one is not the characteristic of Kingdom Animalia.

A All animals are ingestive heterotrophs

B All animals are eukaryotes

C All animals develop from the dissimilar gametes i.e. large sperm and small egg.

D It is largest kingdom.

Review Detailed Answer

Correct Answer: All animals develop from the dissimilar gametes i.e. large sperm and small egg.

_______ are the first group of invertebrates which have developed a closed circulatory system.

A Nematods

B Annelids

C Arthropods

D Molluscs

Review Detailed Answer

Correct Answer: Annelids

Main blood vessel of arthropods usually:

A Lies on dorsal side

B Lies on ventral side

C Lies on lateral side

D Is not present

Review Detailed Answer

Correct Answer: Lies on dorsal side

Second largest phylum of invertebrates is____________?

A Porifera

B Arthropoda

C Mollusca

D Chordata

Review Detailed Answer

Correct Answer: Mollusca

Body is globular in_________?

A Cake urchin

B Sea Urchin

C Sea cucumber

D Brittle star

Review Detailed Answer

Correct Answer: Sea Urchin

Body is eel like in___________?

A Cyclostomata

B Chondrichthyes

C Osteichthyes

D None of these

Review Detailed Answer

Correct Answer: Cyclostomata

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Biology 1525 MCQs [All-Courses]

All Topics 1525

All Topics 1525

The drfinite shape to ciliates is given by____________?

Enteron in coelenterates acts as___________?

Porifera range in size from__________?

Coelom is lined by__________?

Of the following which one is not the characteristic of Kingdom Animalia.

_______ are the first group of invertebrates which have developed a closed circulatory system.

Main blood vessel of arthropods usually:

Second largest phylum of invertebrates is____________?

Body is globular in_________?

Body is eel like in___________?