101. Echinoderms are closest to:
Answer: C. chordates
Biology Class 11 Unit 10: Animalia MCQs
216 multiple choice questions with the correct answer for each. Tap an option to check yourself, or switch on "Show all answers". This is page 3 of 5.
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102. Which is an echinoderm?
Answer: C. Starfish, sea urchin, sea cucumber
103. The power of regenerating lost arms by starfish is called:
Answer: B. autotomy and regeneration
104. Hemichordates are known as:
Answer: B. acorn worms
105. Hemichordates are also called:
Answer: B. prochordates
106. The body of hemichordates has three regions:
Answer: B. proboscis, collar and trunk
107. Balanoglossus and Saccoglossus belong to:
Answer: B. Hemichordata
108. The characteristic features of chordates are:
Answer: B. notochord, dorsal hollow nerve cord, gill slits and post-anal tail
109. The notochord is a:
Answer: B. solid unjointed rod in the mid-dorsal line between gut and nerve cord
110. The nerve cord in chordates is:
Answer: B. single, tubular, non-ganglionated and dorsal
111. In humans the post-anal tail regresses into the:
Answer: B. tailbone (coccyx)
112. Phylum Chordata is divided into:
Answer: B. Protochordata (Acrania) and Craniata
113. The two subphyla of Protochordata are:
Answer: B. Urochordata and Cephalochordata
114. Urochordates are known as:
Answer: B. tunicates
115. An example of Urochordata is:
Answer: B. Ascidia
116. In urochordates the notochord is present in the:
Answer: B. larval tail, and disappears in the adult
117. Amphioxus belongs to:
Answer: B. Cephalochordata
118. In cephalochordates the notochord extends:
Answer: C. the entire length of the body
119. Craniata have one subphylum:
Answer: C. Vertebrata
120. The two superclasses of Vertebrata are:
Answer: B. Agnatha and Gnathostomata
121. Agnatha are:
Answer: B. jawless fishes
122. Examples of Agnatha are:
Answer: C. Hagfish and lamprey
123. Jaws are believed to have evolved from:
Answer: B. the first pair of gill arches
124. Gnathostomata are divided into how many classes?
Answer: C. Six
125. Cartilaginous fishes belong to class:
Answer: B. Chondrichthyes
126. An example of Chondrichthyes is:
Answer: C. Dogfish shark, skate, ray
127. Chondrichthyes have the mouth:
Answer: B. ventral
128. Bony fishes belong to class:
Answer: B. Osteichthyes
129. The respiration in bony fishes is by gills covered by:
Answer: B. operculum
130. Labeo rohita (Rohu) is a:
Answer: B. bony fish
131. Latimeria is a:
Answer: B. lobe-finned fish, a living fossil
132. Amphibians evolved from:
Answer: D. lobe-finned bony fishes with lungs
133. The first tetrapods were:
Answer: B. amphibians
134. The body of amphibians is divided into:
Answer: B. head and trunk only
135. The heart of amphibians is:
Answer: B. three chambered
136. Respiration in adult amphibians is by:
Answer: B. lungs and skin
137. Amphibians are:
Answer: B. poikilothermic (ectotherms)
138. Amphibians are:
Answer: B. anamniotes (without amnion)
139. Caecilians are:
Answer: C. limbless amphibians
140. Which is an amphibian?
Answer: C. Frog, toad or salamander
141. Amphibians are not a very successful group because they depend on water for:
Answer: B. habitat, reproduction and development
142. Skin of reptiles is:
Answer: C. rough, cornified and dry
143. The heart of most reptiles is:
Answer: C. incompletely four chambered
144. Which reptile has a completely four-chambered heart?
Answer: D. Crocodile
145. Reptiles are:
Answer: B. ectothermic (poikilothermic)
146. The three extra-embryonic membranes of reptiles are:
Answer: B. amnion, allantois and chorion
147. The fertilization in reptiles is:
Answer: B. internal
148. Reptiles lay eggs which are covered by:
Answer: C. leathery or limy shell
149. Birds have the forelimbs modified into:
Answer: B. wings
150. Birds have:
Answer: B. a horny beak and no teeth
About Biology Class 11 Unit 10 MCQs (Federal Board)
These 216 Biology MCQs cover Class 11 Unit 10: Animalia of the Federal Board (FBISE) HSSC-I (1st Year / Class 11) syllabus. They are SLO-based MCQs as per the new pattern for FBISE exams. Each question has four options and the correct answer is shown, so you can practise for the annual examination and find the topics you still need to revise. The questions are split over 5 pages of 50. Use the Print button to save this chapter as a PDF.