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Reproduction in mammals, birds and insects

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  • what happens after incubation
    The eggs hatches and a complete fetus gets out
  • Is the larva identical to its parents?
    No since it looks like a worm and not a butterfly.
  • How does the fetus get the oxygen and nutrients during brooding? ( in birds)
    fetus gets oxygen from the air spaces inside the egg whereas the nutrients are provided by the yolk and the albumen
  • what is the first step in sexual reproduction?
    Fertilization
  • Do birds take care of their babies?
    yes since they lay little amount of eggs
  • What happens during fertilization?
    sperm combines (fertilizes) with the ovum resulting in the formation of a zygote (embryo)
  • What do we call insects?and why?
    Insects are called oviparous since they lay eggs where their young grows outside their bodies
  • What is sexual reproduction ?
    Sexual reproduction requires the presence of both parents male and female and the produced offspring may resemble their parents
  • How do birds reproduce?
    Birds reproduce sexually
  • What is Metamorphosis?
    It is the series of developmental stages the insect passes through to become an adult.
  • How does the fetus get the warmth and the protection? (in mammals)
    The uterus of the mother provides the warmth and the protection for the fetus
  • How do mammals reproduce?
    Mammals reproduce sexually
  • What covers the body of the insect?
    Exoskeleton
  • In mammals, where does the fetus grow?
    the fetus grows inside the mother's uterus
  • From where does the fetus get the nutrients and the oxygen?and how?(mammals)
    The fetus gets the nutrients and the oxygen from the mother's blood through the umbilical cord
  • what do we call mammals? and why?
    Mammals are viviparous since their young grows inside their body inside the uterus
  • What are the stages of Metamorphosis?
    egg,larva,pupa and adult
  • How do insects reproduce?
    Insects reproduce sexually
  • what do we call birds and why?
    Birds are oviparous since their young grows in the egg outside their body
  • How can the fetus get the warmth and protection during the incubation? (in birds)
    from the hen and the egg shell
  • In birds, what is the incubation period?
    Incubation period, is the period the fetus spends growing inside the egg feeding on the nutritive materials inside
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