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Almost all animals begin as an egg and a sperm. There are a few exceptions, though, such as sea sponges. But for the majority, they begin as sperm and egg.
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∙ 11y ago
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What is necessary for blood formation to begin in an unfertilized egg?
Male sperm
When sperm reach the oviduct there is no egg what happens to the sperm?
the sperm just die
What are two crucial reproductive adaptations animals needed to make in order to live on land?
One adaptation is the amniotic egg; a waterproof egg with a shell. It also has an amnion that will protect the embryo from drying out. The other is internal fertilization: when the sperm has to enter directly into the female because the sperm does not survive in the air. Previously animals, like sponges, had to spread their sperm through the water in hopes of fertilization. Both of these adaptions are crucial to life on land and we would not be here without them.
Is any part of a chicken egg sperm?
No
What animal produces by sperm and egg?
humans
How does the human life begin?
With a sperm cell and a egg cell.
Sperm and egg cell maturity begin at?
It begins at puberty.
What is necessary for blood formation to begin in an unfertilized egg?
Male sperm
When does life begin after birth or during union of the egg cell and sperm cell?
Life begins when the egg cell and sperm cell unite to form the zygote.
What is a egg cell and Sperm cell?
sperm cell is the typical sperm of most animals has a head containing the nucleus and acrosome
How did every single person begin life?
When an egg was fertilized by a sperm cell.
What are two names of the sex cells animals make?
Sperm, and Egg
What do you call the union of egg cell and sperm cell in animals?
Fertilization
What is the fertilization of egg and sperm?
The very first result of egg and sperm coming together is a zygote. This will begin to divide many, many times to finally form an individual.
What is the result of egg and sperm fertilization?
The very first result of egg and sperm coming together is a zygote. This will begin to divide many, many times to finally form an individual.
What is a fast swimmer sperm cell?
The fastest swimming sperm is the one that reaches the female's egg first, and on entering, will cause the egg to be fertilised and so begin the process of reproduction.
When does new life begin?
When a sperm cells unites with an egg, new life begins.
