Biology MCQs

Correct answer B. Urea

Correct answer A. Nephridiopore

Correct answer C. 50 ml

Correct answer C. Xanthine

Correct answer A. They excrete some waste materials directly into the soil, occasionally using them as a chemical weapon against competing plants

Correct answer C. O2

Correct answer B. Bony fishes

Correct answer A. Osmoconformers

Correct answer A. Increased transpiration through larger leaf surface area

Correct answer D. Osmoregulation

Correct answer A. Ectotherms

Correct answer D. Embracing the enzymes and other proteins and preventing their denaturation

Correct answer B. Evaporative cooling

Correct answer A. Rapid heat production

Correct answer C. 55%

Correct answer B. They are present lateral to the oesophagus

Correct answer A. Active transport

Correct answer D. Fish

Correct answer C. Lowers

Correct answer B. Fungi