Give two differences between a zygote and a foetus.

Explanation

### Step-by-Step Solution:

1. **Definition of Zygote**:
- A zygote is the first cell formed when a sperm fertilizes an egg. It is a unicellular organism and is diploid (2N), meaning it contains two sets of chromosomes, one from each parent.

2. **Definition of Fetus**:
- A fetus is a later stage of development that occurs after the zygote undergoes multiple divisions and differentiations. It is a multicellular organism that develops in the mother's womb.

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