121. Snails belong to_________?
✅ A. gastropods
Option A: gastropods Option B: bivalves Option C: arthropods Option D: platyhelminthes Correct Answer : gastropods Read more
Biology MCQs – Page 7
122. In human beings influenza is caused by_________?
✅ C. virus
Option A: bacteria Option B: protist Option C: virus Option D: fungi Correct Answer : virus Read more
123. Non-enveloped naked viruses are known as___________?
✅ D. virions
Option A: prions Option B: bacteriophages Option C: oncoviruses Option D: virions Correct Answer : virions Read more
124. Gram +ve bacteria on treatment with crystal violet dye give _________colour?
✅ C. purple
Option A: red Option B: green Option C: purple Option D: pink Correct Answer : purple Read more
125. Malarial parasite is injected into man as__________?
✅ A. sporozoites
Option A: sporozoites Option B: merozoites Option C: zygote Option D: none of these Correct Answer : sporozoites Read more
126. The foetus is protected from the mechanical damage by the__________?
✅ D. amniotic fluid
Option A: cervix Option B: vagina Option C: uterus Option D: amniotic fluid Correct Answer : amniotic fluid Read more
127. Release of the ovum from ovary is called__________?
✅ B. ovulation
Option A: fertilization Option B: ovulation Option C: implantation Option D: none of these Correct Answer : ovulation Read more
128. Detachment of myosin head and actin in rigor mortis occurs due to__________?
✅ D. hyperactivity of mitochondria
Option A: stored ATP in body Option B: hypercalcemia Option C: autolysis in body Option D: hyperactivity of mitochondria Correct Answer : hyperactivity of mitochondria Read more
129. Which bone is called beauty bone in women?
✅ B. clavicle
Option A: sternum Option B: clavicle Option C: maxilla Option D: radius Correct Answer : clavicle Read more
130. The plants which produce embryo but lack vascular tissues and seeds are placed in_________?
✅ A. bryophytes
Option A: bryophytes Option B: pteridophytes Option C: tracheophytes Option D: all of these Correct Answer : bryophytes Read more
131. Higher vascular plants are also called__________?
✅ B. seed plants
Option A: flowering plants Option B: seed plants Option C: ferns Option D: none of these Correct Answer : seed plants Read more
132. In all coelentrates endoderm give rise to__________?
✅ B. digestive system
Option A: nervous system Option B: digestive system Option C: reproductive system Option D: circulatory system Correct Answer : digestive system Read more
133. Liver fluke is parasite in the liver of__________?
✅ D. all of these
Option A: cattle Option B: sheep Option C: goat Option D: all of these Correct Answer : all of these Read more
134. Amoeba moves in water with the help of locomotory organs called_________?
✅ C. pseudopodia
Option A: tube feet Option B: cilia Option C: pseudopodia Option D: flagella Correct Answer : pseudopodia Read more
135. Sickle cell anemia was discovered by_________?
✅ A. Vernon Ingram
Option A: Vernon Ingram Option B: Sanger Option C: Miescher Option D: none of these Correct Answer : Vernon Ingram Read more
136. Rich source of energy in seimen is__________?
✅ A. glucose
Option A: glucose Option B: fructose Option C: lactose Option D: sacrose Correct Answer : glucose Read more
137. The normal pH of human blood is____________?
✅ C. 7.4
Option A: 6.4 Option B: 7 Option C: 7.4 Option D: 7.5 Correct Answer : 7.4 Read more
138. Bean shaped cells in plants are_________?
✅ D. guard cells
Option A: mesophyll cells Option B: xylem cells Option C: phloem cells Option D: guard cells Correct Answer : guard cells Read more
139. Villi and microvilli increase__________?
✅ C. absorption
Option A: digestion Option B: assimilation Option C: absorption Option D: ingestion Correct Answer : absorption Read more
140. Water potential of pure water is__________?
✅ A. zero
Option A: zero Option B: one Option C: negative Option D: two Correct Answer : zero Read more