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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 phylum chrordata comprise about how many species?

A 25,000

B 50,000

C 100,000

D 10,00,000

Review Detailed Answer

Correct Answer: 50,000

Sub- phylum vertebrate is also known as__________?

A Pisces

B Craniata

C Aves

D Amphibia

Review Detailed Answer

Correct Answer: Craniata

They are considered to be the most primitive and are surely the first of the vertebrates?

A Frogs

B Reptiles

C Amphibinas

D Jawless fishes

Review Detailed Answer

Correct Answer: Jawless fishes

Scolidon or dog fish belong to the group of fishes called__________?

A Cartilaginous fishes

B Bony fishes

C Running fishes

D Jawless fishes

Review Detailed Answer

Correct Answer: Cartilaginous fishes

Nephrostome in earthworm opens in____________?

A External space

B Internal Body cavity

C In gut

D In Bladder

Review Detailed Answer

Correct Answer: Internal Body cavity

The nephridia of earthworm open into the coelom by_________?

A Nephrostome

B Nephridiopore

C Flame cell

D Anus

Review Detailed Answer

Correct Answer: Nephrostome

Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate

A 80.50%

B 90.50%

C 95.50%

D 99.50%

Review Detailed Answer

Correct Answer: 99.50%

Which of the following filtrate contains excessive amount of amino acids, glucose, and salts?

A Glomerular filtrate

B Filtrate passing through ascending limb

C Filtrate passing through distal conveluted tubule

D Filtrate passing through collecting tubules

Review Detailed Answer

Correct Answer: Glomerular filtrate

Malphighian tubules absorb waste materials and salts from__________?

A Blood

B Lymph

C Gut

D Hemolymph

Review Detailed Answer

Correct Answer: Hemolymph

Which of the following openings have cilia?

A Nephrostome

B Nephridiopore

C Both of these

D None of these

Review Detailed Answer

Correct Answer: Nephrostome

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Biology 1525 MCQs [All-Courses]

All Topics 1525

All Topics 1525

The phylum chrordata comprise about how many species?

Sub- phylum vertebrate is also known as__________?

They are considered to be the most primitive and are surely the first of the vertebrates?

Scolidon or dog fish belong to the group of fishes called__________?

Nephrostome in earthworm opens in____________?

The nephridia of earthworm open into the coelom by_________?

Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate

Which of the following filtrate contains excessive amount of amino acids, glucose, and salts?

Malphighian tubules absorb waste materials and salts from__________?

Which of the following openings have cilia?