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 contributes to the predatory nature of Chondrichthyes?
The NCERT text describes, 'Their jaws are very powerful. These animals are predaceous.' While a streamlined body helps in movement, powerful jaws are directly linked to their predatory lifestyle.
Chondrichthyes are grouped under 'Pisces' along with Osteichthyes because they both:
The NCERT states, 'Classes Chondrichthyes and Osteichthyes bear fins for locomotion and are grouped under Pisces.' This is the common feature for their grouping.
Which of the following statements about Hemichordata is INCORRECT?
According to the NCERT text, 'Circulatory system is of open type' in Hemichordata. Therefore, saying it is of closed type is incorrect.
Hemichordates were previously classified as a sub-phylum under which phylum?
The NCERT states, 'Hemichordata was earlier considered as a sub-phylum under phylum Chordata. But now it is placed as a separate phylum under non-chordata.'
What is the function of the proboscis gland in Hemichordata?
The NCERT text explicitly mentions, 'Excretory organ is proboscis gland' in Hemichordata.
Which of the following characteristics is common to both Hemichordata and Echinodermata, as described in the provided context?
The NCERT text states that Hemichordates are 'worm-like marine animals' and Echinoderms are 'All are marine'. While other options may relate to one, 'exclusively marine' is common to both as per the text.
The level of organization found in Phylum Hemichordata is:
The NCERT mentions, 'This phylum consists of a small group of worm-like marine animals with organ-system level of organisation.' This is further supported by the summary that discusses the basis of classification.
Which of the following examples are correctly associated with Phylum Hemichordata?
The NCERT provides, 'Examples: Balanoglossus and Saccoglossus' under the description of Phylum Hemichordata.
In Hemichordata, what is the nature of fertilization and development?
The NCERT states, 'Fertilisation is external. Development is indirect.' for Hemichordata.
What is the rudimentary structure found in the collar region of Hemichordates, considered similar to a notochord?
The NCERT text describes, 'Hemichordates have a rudimentary structure in the collar region called stomochord, a structure similar to notochord.'
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