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Vertebrates and Invertebrates

Vertebrates and Invertebrates. By Csanad Horvath. 1 st Invertebrate: Jellyfish.

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Vertebrates and Invertebrates

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  1. Vertebrates and Invertebrates By Csanad Horvath

  2. 1st Invertebrate: Jellyfish • Jellyfish can reproduce both sexually and asexually. The embryo is attached to the tentacles until they are ready to drop off. Parents take care of their embryos and young's by getting them into their mouths and covering them in a layer of brood chambers to keep them protected.

  3. 2nd Invertebrate: Squid • Squid mostly reproduce sexually by using an ink sac (females), and a penis (male). The embryos are spermatophores and during the mating they go into the female’s mantle. The squid embryos are left behind when born and so they depend on their own and where the current takes them.

  4. 1st Vertebrate: Whale • Since Whales are mammals, they give live birth, and produce usually one calve. They reproduce sexually and release the most sperm among animals. The embryo is stored in the belly until born. When born the baby learns everything from her mother and are always next to each other. Parents and child separate usually at the age of 10 or so since whales usually live to an average of 77 years. They are really similar to humans in this way.

  5. 2nd Vertebrate: Snow Leopard • Snow leopards are mammals and they reproduce sexually just like humans. They usually mate in late winter and give birth to 2 cubs but five is also possible. They keep the embryo in the stomach and after birth the babies are blind for 4 more weeks. They stay with their mother for 18-22 months so way shorter than whales or humans.

  6. 3rd Vertebrate: Kangaroo • Kangaroos reproduce sexually, and even thought they are so big their babies are the smallest ones among animals. One baby is approximately 1cm long, as big as your finger nail! They develop in the pouch from which it once leaves can never come back. They usually separate from parents after about 200 days.

  7. THE END • All the animals produce either sexually or asexually. But the way their babies are born and the time they need to leave parents is different. The size difference is straight on astonishing between a whale and a kangaroo. • By Csanad Horvath

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