bird egg before hatching is...
a.An organ
b. A single cell
c.A tissue
d.A nucleus
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Answer:
b) a single cell.
Explanation:
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● Bird egg before hatching is called zygote Or a single cell.
● But there a process occurs inside the egg where the whole organism is developed consisting of tissues.
● After hatching the complete organism or the bird comes out of the egg by breaking out the shell.
● Hence egg is considered as a single cell from which the whole organism is developed.
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