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NEET UG Neet B01 — practice questions — page 2

Explore 61 free Neet B01 questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Neet B01 questions and exercises with answers

Showing questions 31–60 of 61.

Marine diploblastic animals with eight comb-plate rows and marked bioluminescence belong to:Read the answer and worked solution →Which pair belongs to Ctenophora?Read the answer and worked solution →A dorsoventrally flattened, triploblastic acoelomate with flame cells belongs to:Read the answer and worked solution →Which pair contains only flatworms?Read the answer and worked solution →Which pair consists of aschelminths?Read the answer and worked solution →True metamerism, a coelom, closed circulation and nephridia together indicate:Read the answer and worked solution →Which pair belongs to Annelida?Read the answer and worked solution →Jointed appendages, chitinous exoskeleton and open circulation identify:Read the answer and worked solution →Which pair consists of arthropods?Read the answer and worked solution →A muscular foot, visceral hump and mantle are characteristic of:Read the answer and worked solution →Which pair belongs to Mollusca?Read the answer and worked solution →Which phylum combines a water vascular system, calcareous endoskeleton and radial adults?Read the answer and worked solution →Which pair contains only echinoderms?Read the answer and worked solution →A marine animal with proboscis, collar, trunk and a proboscis gland belongs to:Read the answer and worked solution →Which pair belongs to Hemichordata?Read the answer and worked solution →Which nerve cord is characteristic of chordates?Read the answer and worked solution →Ascidia and Salpa have a notochord only in the larval tail. They belong to:Read the answer and worked solution →A circular jawless mouth, 6–15 pairs of gill slits and no paired fins identify:Read the answer and worked solution →Which pair belongs to Cyclostomata?Read the answer and worked solution →Cartilaginous skeleton, placoid scales and gill slits without opercula identify:Read the answer and worked solution →Which pair contains only cartilaginous fishes?Read the answer and worked solution →A bony skeleton, operculum-covered gills and an air bladder indicate:Read the answer and worked solution →Which pair belongs to Osteichthyes?Read the answer and worked solution →Moist scaleless skin, a three-chambered heart and respiration through skin fit:Read the answer and worked solution →Which pair consists of amphibians?Read the answer and worked solution →Dry cornified skin, epidermal scales and internal fertilisation characterise:Read the answer and worked solution →Which pair belongs to Reptilia?Read the answer and worked solution →Feathers, pneumatic bones and forelimbs modified into wings indicate:Read the answer and worked solution →Which pair consists of birds despite their inability to fly?Read the answer and worked solution →Mammary glands, body hair and different types of teeth identify:Read the answer and worked solution →

Worked practice questions

Marine diploblastic animals with eight comb-plate rows and marked bioluminescence belong to:

  1. Porifera
  2. Ctenophora
  3. Platyhelminthes
  4. Echinodermata
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Correct answer: B. Ctenophora

Ctenophores are marine, radially symmetrical, diploblastic animals with tissue-level organisation. Eight rows of ciliated comb plates aid locomotion, and bioluminescence is well marked.

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Which pair belongs to Ctenophora?

  1. Pleurobrachia and Ctenoplana
  2. Physalia and Adamsia
  3. Balanoglossus and Saccoglossus
  4. Petromyzon and Myxine
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Correct answer: A. Pleurobrachia and Ctenoplana

Pleurobrachia and Ctenoplana are ctenophores. They are hermaphrodites, reproduce sexually, and show external fertilisation and indirect development.

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A dorsoventrally flattened, triploblastic acoelomate with flame cells belongs to:

  1. Annelida
  2. Aschelminthes
  3. Mollusca
  4. Platyhelminthes
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Correct answer: D. Platyhelminthes

Platyhelminthes are bilaterally symmetrical, triploblastic and acoelomate, with organ-level organisation. Their bodies are dorsoventrally flattened; flame cells perform osmoregulation and excretion.

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