Which of the following features makes the larval stage of a sponge distinct from its adult form?
The NCERT mentions 'development is indirect having a larval stage which is morphologically distinct from the adult.'
Practice free Classification of Animal Kingdom (Zoology) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following features makes the larval stage of a sponge distinct from its adult form?
The NCERT mentions 'development is indirect having a larval stage which is morphologically distinct from the adult.'
What is the common term used for members of Phylum Porifera?
The first line under Phylum Porifera states, 'Members of this phylum are commonly known as sponges.'
Which of the following describes the central nervous system in chordates?
According to Table 4.1 in the NCERT text, the central nervous system in chordates is dorsal, hollow, and single. In contrast, non-chordates have a ventral, solid, and double central nervous system.
Which of these features is unique to chordates among the options listed, as compared to non-chordates?
While chordates exhibit bilateral symmetry, organ-system level of organisation, and a closed circulatory system, these features are not unique to them as some non-chordates also possess these. The presence of pharyngeal gill slits is one of the fundamental distinguishing features of chordates, as stated in the NCERT text (Figure 4.16 and Table 4.1).
Protochordates are characterized by being exclusively:
The NCERT text states, 'Subphyla Urochordata and Cephalochordata are often referred to as protochordates... and are exclusively marine.'
In which subphylum of Chordata does the notochord extend from head to tail region and persist throughout their life?
The NCERT text specifies, 'In Urochordata, notochord is present only in larval tail, while in Cephalochordata, it extends from head to tail region and is persistent throughout their life.'
Which of the following is an example of an organism from the subphylum Urochordata?
The NCERT text provides 'Examples: Urochordata – Ascidia, Salpa, Doliolum; Cephalochordata – Branchiostoma (Amphioxus or Lancelet).'
Apart from the basic chordate characters, what do vertebrates possess for excretion and osmoregulation?
The NCERT text states, 'Besides the basic chordate characters, vertebrates have a ventral muscular heart... kidneys for excretion and osmoregulation...'
Which of the following statements correctly differentiates between Urochordata and Cephalochordata regarding the notochord?
The NCERT text clearly states, 'In Urochordata, notochord is present only in larval tail, while in Cephalochordata, it extends from head to tail region and is persistent throughout their life.'
The heart in chordates is typically located:
Table 4.1 in the NCERT book compares chordates and non-chordates, stating that 'Heart is ventral' in chordates, whereas it is 'dorsal (if present)' in non-chordates.
Ready to ace NEET?
Free access · No credit card required
Yes. You can attempt every Classification of Animal Kingdom question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.
No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.
The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.