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Dahasolnce [82]
3 years ago
6

Marine mammals, with a few exceptions, are a. oviparous b. ovoviviparous c. viviparous

Biology
1 answer:
RUDIKE [14]3 years ago
3 0

Marine mammals , with few exception are viviparous.

Explanation:

  • Mammals are those animals which are characterized by the presence of mammary gland and body hair.
  • They feed milk to their young ones.
  • The vertebrates are classified as viviparous, oviparous and ovoviviparous depending on the way their young ones develop and are nourished during their embryonic and foetal development.
  • Viviparous animals are those which directly give birth to their young ones and have a distinct gestation period during which their babues develop inside their womb. These are placental mammals.
  • Oviparous animals are those which lay egg and the embryo develops outside mothers body.
  • Ovoviviparous  animals are those who do not lay their eggs but their eggs hatch inside their body .These are aplacental animals.
  • Most mammals are viviparous.

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