Biology
All life starts as-
- an egg
- a single cell
- a gene
- a chromosome
Cell
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Answer
a single cell
Reason— A cell is smallest living entity. Therefore, all life starts as a single cell.
An egg is a reproductive cell, mainly in animals but not all organisms start life as an egg. A gene is a unit of heredity made of DNA and is not a complete living unit. Genes are parts of a cell. A chromosome is a structure made of DNA and proteins. It is a component of a cell.
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Every organism needs food. Does a cell also need it? Explain very briefly.
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- Mitochondria — Secretion of enzymes
- Plasma Membrane — Freely permeable
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