Share Reproduction in mammals, birds and insects
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How do mammals reproduce?
Mammals reproduce sexually
What is sexual reproduction ?
Sexual reproduction requires the presence of both parents male and female and the produced offspring may resemble their parents
what is the first step in sexual reproduction?
Fertilization
What happens during fertilization?
sperm combines (fertilizes) with the ovum resulting in the formation of a zygote (embryo)
In mammals, where does the fetus grow?
the fetus grows inside the mother's uterus
what do we call mammals? and why?
Mammals are viviparous since their young grows inside their body inside the 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
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 insects reproduce?
Insects reproduce sexually
What do we call insects?and why?
Insects are called oviparous since they lay eggs where their young grows outside their bodies
What is Metamorphosis?
It is the series of developmental stages the insect passes through to become an adult.
What covers the body of the insect?
Exoskeleton
What are the stages of Metamorphosis?
egg,larva,pupa and adult
Is the larva identical to its parents?
No since it looks like a worm and not a butterfly.
How do birds reproduce?
Birds reproduce sexually
what do we call birds and why?
Birds are oviparous since their young grows in the egg outside their body
