1201. A series of hypothesis supported by the results of many tests is called ?
✅ B. Theory
Option A: Scientific law Option B: Theory Option C: Data Option D: Deduction Correct Answer : Theory Read more
Biology MCQs – Page 61
1202. Which are the four most abundant elements in living cells ?
✅ B. carbon, oxygen, hydrogen, nitrogen
Option A: carbon, oxygen, nitrogen, sulfur Option B: carbon, oxygen, hydrogen, nitrogen Option C: carbon, oxygen, sulfur, phosphorus Option D: carbon, sulfur, hydrogen, magnesium Correct Answer : carbon, oxygen, hydrogen, nitrogen Read more
1203. Which one is not correct for a productive theory?
✅ C. It discourages suggestion of different hypotheses
Option A: It is predictive Option B: It has explanatory power Option C: It discourages suggestion of different hypotheses Option D: None of these Correct Answer : It discourages suggestion of different hypotheses Read more
1204. Conclusion of Mendels work latter became a_____________?
✅ C. Scientific law
Option A: Scientific hypothesis Option B: Theory Option C: Scientific law Option D: Productive theory Correct Answer : Scientific law Read more
1205. Starch is converted into maltose by?
✅ A. diastase
Option A: diastase Option B: invertase Option C: maltase Option D: amylase Correct Answer : diastase Read more
1206. Breeders have developed new and better varieties of food items by using which technique?
✅ C. Genetic engineering
Option A: Pasteurization Option B: Hydroponic culture technique Option C: Genetic engineering Option D: Biological control techniques Correct Answer : Genetic engineering Read more
1207. Co-enzyme is often formed from ?
✅ D. vitamin
Option A: lipid Option B: protein Option C: inorganic ion Option D: vitamin Correct Answer : vitamin Read more
1208. The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by ?
✅ B. Paleontologist
Option A: Environmental biologist Option B: Paleontologist Option C: Marine biologist Option D: Social biologist Correct Answer : Paleontologist Read more
1209. Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ?
✅ A. Concentration of water molecules inside and outside the cell
Option A: Concentration of water molecules inside and outside the cell Option B: Concentration of enzymes on either side of the cell membrane Option C: Rate of molecular motion on either side of the cell membrane Option D: None of these Correct Answer : Concentration of water molecules inside and outside the cell Read more
1210. It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect?
✅ B. Older sediment layers have less amount of these radioactive isotopes as that of the young ones.
Option A: Older sediment layers have equal amount of these radioactive isotopes as that of the young ones Option B: Older sediment layers have less amount of these radioactive isotopes as that of the young ones. Option C: Older sediment layers have greater amount of these radioactive isotopes as that of the young ones. Option D: Older sediment layers did… Read more
1211. Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of
✅ D. Active transport
Option A: Diffusion Option B: Passive transport Option C: Osmosis Option D: Active transport Correct Answer : Active transport Read more
1212. An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called?
✅ B. Phyletic lineage
Option A: Biome Option B: Phyletic lineage Option C: Community Option D: Population Correct Answer : Phyletic lineage Read more
1213. Most cell membranes are composed principally of ?
✅ B. Protein and Lipids
Option A: DNA ad protein Option B: Protein and Lipids Option C: Protein and Chitin Option D: Protein and RNA Correct Answer : Protein and Lipids Read more
1214. Which one of them is a micro-molecule?
✅ D. ATP
Option A: Polysaccharide Option B: Protein Option C: Hemoglobin Option D: ATP Correct Answer : ATP Read more
1215. A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as:
✅ C. A Tissue
Option A: An organ Option B: An organism Option C: A Tissue Option D: A Cell Correct Answer : A Tissue Read more
1216. Haemodialysis means cleaning of____________?
✅ B. Blood
Option A: Urine Option B: Blood Option C: Glomerular filterate Option D: Coelomic fluid Correct Answer : Blood Read more
1217. In animals coordination is achieved by means of?
✅ D. Both A and B
Option A: Nervous system Option B: Endocrine system Option C: Respiratory system Option D: Both A and B Correct Answer : Both A and B Read more
1218. Production of sweat and sebum is related with ?
✅ A. Skin
Option A: Skin Option B: Liver Option C: Lungs Option D: GIT Correct Answer : Skin Read more
1219. Group of living organisms of the same species living in the same place at the same time is called ?
✅ B. Population
Option A: Community Option B: Population Option C: Ecosystem Option D: Biome Correct Answer : Population Read more
1220. The evaporative cooling in the respiratory tract of dogs is called?
✅ C. Panting
Option A: Vasodilation Option B: Vasoconstriction Option C: Panting Option D: All of these Correct Answer : Panting Read more