biology mcqs
An extensive multiple-choice question test covering the diversity of the living world, biological classification systems, and detailed characteristics of the five kingdoms (Monera, Protista, Fungi, Plantae, and Animalia) including viruses, viroids, prions, and lichens, designed for competitive exam preparation.
Showing questions 141 - 160 of 168
141. In Porifera, what are the flagellated cells lining the spongocoel and canals called?
142. Which unique feature helps Cnidarians for anchorage, defense, and prey capture?
143. *Obelia* exhibits alternation of generations, where polyps produce medusae __________ and medusae form polyps __________.
144. Ctenophores are commonly known as:
145. A unique property of living organisms to emit light, well-marked in ctenophores, is called:
146. Which phylum is characterized by dorso-ventrally flattened bodies and the presence of flame cells for osmoregulation and excretion?
147. *Planaria* is known for its high:
148. Aschelminthes are commonly called roundworms due to their body shape in cross-section. What is their body cavity type?
149. In which phylum is the body surface distinctly marked out into segments or metameres?
150. Which aquatic annelid possesses lateral appendages called parapodia that help in swimming?
151. Which phylum is the largest group of Animalia, including insects, and is characterized by a chitinous exoskeleton and jointed appendages?
152. What are the respiratory organs found in Arthropods?
153. Excretion in Arthropods takes place through:
154. The second largest animal phylum, characterized by a calcareous shell, a muscular foot, and a radula for feeding, is:
155. The distinctive feature of Echinoderms, helping in locomotion, food capture and transport, and respiration, is the presence of:
156. In Echinoderms, the adult exhibits __________ symmetry, while the larvae exhibit __________ symmetry.
157. Hemichordates possess a rudimentary structure in the collar region, similar to a notochord, called the:
158. Which of the following characteristics are fundamental to animals belonging to Phylum Chordata?
159. The statement 'All vertebrates are chordates but all chordates are not vertebrates' is justified because:
160. In which subphylum of Chordata is the notochord present only in the larval tail?