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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

Which of the following statement about eiliates in incorrect_____________?

A Contain mainly unicellular organisms.
B Their contractile vacoule is respobsible for water regulation.
C They are even capable of sexual reproduction.
D Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process.
Correct Answer: Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process.

In chlorophytes the main energy stores are__________?

A Cellulose
B Starch
C Glycogen
D All of these
Correct Answer: Starch

Radiolarians belong to which of the following protozoal group____________?

A Zooflagellates
B Actinopods
C Foraminifera
D Apicomplexans
Correct Answer: Actinopods

Of the following which one is not the characteristic of green algae?

A Some green algae possess cell wall with cellulose
B They are generally accepted as the ancestors of green plants
C Chlorella is unicellular non-motile green algae
D None of these
Correct Answer: Some green algae possess cell wall with cellulose

Which of the protozoa has a striking resemblance to collar cells in sponges_____________?

A Zooflagellates
B Choanflagellates
C Trypanosomoa
D Trichonymphas
Correct Answer: Choanflagellates

In slime molds spores develop into__________?

A Swarm cells
B Biflagellated cells
C Amoeboid reproductive cells
D All of these
Correct Answer: All of these

Who first separated bacteria from other protists as a group_____________?

A John Hogg
B Ernst Haeckel
C Margulis and Schwartz
D Herbert Copeland
Correct Answer: Herbert Copeland

Spores produced by slime molds are__________?

A Haploid
B Diploid
C Triploid
D None of these
Correct Answer: Haploid

Which of the following statement about Kingdom Protista is incorrect_______________?

A Their members have characteristics which separate them from other kingdoms
B They only include unicellular aquatic eukaryotic organisms
C They do not develop from Blastula or embryo
D They contain ancestors for fungi plants & animals
Correct Answer: They only include unicellular aquatic eukaryotic organisms

Which of the following is responsible for Irish potato famine?

A Dinoflagellates
B Kleps
C Physarum polycephalum
D Phytophthora infestans
Correct Answer: Phytophthora infestans
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