Biology MCQS

241. _ cellular organelle has its own DNA.
(A) Centrioles
(B) Mitochondria)
(C) Ribosomes
(D) Lysosomes

242. Biodiversity is richer in?
(A) Polar regions
(B) Temperate regions
(C) Tropics)
(D) Deserts

243. Which scientist performed experiments on malaria in sparrows?
(A) Laveran
(B) Bu Ali Sina
(C) Ross)
(D) None of the above

244. The excretory organs of annelids:
(A) Nephridia)
(B) Flame cells
(C) Malpighian cells
(D) Green glands

245. Ginger is an example of:
(A) Tuber
(B) Rhizome)
(C) Bulb
(D) Corn

246. Potato is a modified form of:
(A) Root
(B) Stem)
(C) Fruit
(D) Leaf

247. Which of the following is a parasitic plant?
(A) Marchantia
(B) Kelp
(C) Mushroom)
(D) Pteris

248. Which of the following is a carnivorous plant?
(A) Um plant
(B) Pitcher plant)
(C) Cacti
(D) Ribbon plant

249. When we eat cauliflower, we consume:
(A) Leaf
(B) Stem
(C) Flower
(D) Inflorescence)

250. When day-light hours are increased, the rate of photosynthesis:
(A) Increases
(B) Decreases
(C) Remains unchanged)
(D) None of the above