Biology MCQs

Correct answer C. Spirochetes

Correct answer D. 4

Correct answer A. Ancient bacteria

Correct answer D. 1.1–1.5 µm (width), 2.0–6.0 µm (length)

Correct answer D. 500 µm

Correct answer B. Capsule

Correct answer C. The pure culture cannot produce the disease when inoculated into a susceptible animal, although the causative organism isolated from the pure culture can

Correct answer C. Robert Koch

Correct answer A. Antonie van Leeuwenhoek

Correct answer A. Ancient bacteria

Correct answer C. Chlorophyta

Correct answer D. Unlike in plants, their zygote is protected by parental tissue

Correct answer A. Algae

Correct answer A. Radiolarians

Correct answer B. Rhodophyta

Correct answer B. Foraminiferans

Correct answer C. Phaeophyta

Correct answer D. Pellicle

Correct answer B. Chrysophyta

Correct answer B. Trichonymphas