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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

The drfinite shape to ciliates is given by____________?
A Pellicle
B Penicle
C Calcium
D Cell wall
Correct Answer: Pellicle
Enteron in coelenterates acts as___________?
A Digestive cavity
B Body cavity
C Transporting cavity
D all of these
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.
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
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.
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
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
Correct Answer: Lies on dorsal side
Second largest phylum of invertebrates is____________?
A Porifera
B Arthropoda
C Mollusca
D Chordata
Correct Answer: Mollusca
Body is globular in_________?
A Cake urchin
B Sea Urchin
C Sea cucumber
D Brittle star
Correct Answer: Sea Urchin
Body is eel like in___________?
A Cyclostomata
B Chondrichthyes
C Osteichthyes
D None of these
Correct Answer: Cyclostomata
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