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Anonymous
Anonymous asked in Science & MathematicsZoology · 1 month ago

What animals do not use eggs (in some form) as a part of their reproduction?

8 Answers

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  • 1 month ago

    Earthworms?...……..nope, wrong answer,  google said they use eggs……..so I don't have a clue.

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  • 1 month ago

    All non-marsupial mammals.

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  • 1 month ago

    I can't think of any.

    Sure, there are plenty that can reproduce through budding or fragmentation -- but these animals also have a sexual reproduction mode.  Yes, even hydras and placozoa and sponges.

    • 6000_km_under
      Lv 4
      1 month agoReport

      Hydras do not have eggs, nor sperm like. They send in the water dna which 'if' attaches to other hydra surface. And if that happens the receiver of dna will produce new hydra(s) and its life will be shortened or dead soon. They live long only by asexual reproduction. Senders of dna are murderers.

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  • 1 month ago

    Do you mean eggs in the sense of egg cells - oocytes - or in the sense of some sort of externally protected reproductive structure, like a chicken egg?

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  • Anonymous
    1 month ago

    Those that clone themselves by budding. For example, hydras. A new animal can grow within the body of an existing one, and then it separates itself and becomes a different individual.

    Some animals can reproduce by fission. For example, some flatworms can split into two different individuals, and the 2 individuals can then regrow the missing parts.

    Others can do it by regeneration. When an animals is torn apart by force, the two parts may be able to grow back the missing parts. For example, a starfish can regenerate missing arms if it is torn into two different parts. Both parts may be able to grow back the missing parts.

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  • Rick
    Lv 7
    1 month ago

    warm-blooded mammals ........................

    • Robsteriark
      Lv 7
      1 month agoReport

      Mammals still have eggs internally, and some mammals (monotremes) still lay eggs.

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  • Mercy
    Lv 7
    1 month ago
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  • 1 month ago

    Mammals don't use eggs.

    • Robsteriark
      Lv 7
      1 month agoReport

      Mammals still have eggs internally, and some mammals (monotremes) still lay eggs.

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