Which of the following is a correct characteristic of reptiles?
Reptiles are uricotelic, meaning they excrete uric acid to conserve water.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Phylum Hemichordata and Chordata - Protochordata
Practice questions on the Phylum Hemichordata and the subphylum Protochordata, including their anatomical features and evolutionary relationships.
Filter questions
Which structure in hemichordates is functionally similar to the notochord?
The stomochord in hemichordates is a rod-like structure that functions similarly to the notochord.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following statements about vertebrates is correct?
Vertebrates include both jawless (Cyclostomata) and jawed (Gnathostomata) animals.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following statements about birds is incorrect?
Birds do not have a diaphragm; instead, they use air sacs to assist in respiration.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following statements about arthropods is correct?
Arthropods are characterized by the presence of jointed appendages, which aid in movement and other functions.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following statements about fishes is incorrect?
Most fishes breathe through gills, not lungs, though some, like lungfish, have specialized respiratory adaptations.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following features is a synapomorphy of Chordata?
Pharyngeal gill slits are a defining characteristic of chordates, present in some stage of their development.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following animals belongs to the phylum Hemichordata?
Balanoglossus is a hemichordate, characterized by a proboscis, collar, and trunk.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following statements about hemichordates is incorrect?
Hemichordates have a stomochord, which is similar in function but not homologous to the notochord.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which structure in molluscs is responsible for secreting the shell?
The mantle in molluscs is a soft tissue layer that secretes the calcareous shell.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which of the following statements about reptiles is correct?
Reptiles lay amniotic eggs, which help protect the embryo from desiccation.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
Which feature is unique to phylum Hemichordata?
Hemichordates have a body divided into three parts: proboscis, collar, and trunk.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Phylum Hemichordata and Chordata - Protochordata
