Human egg has an animal pole. Describe two events that take place at this pole?

Explanation

### Step-by-Step Solution:

1. **Understanding the Animal Pole**: The animal pole of the human egg is the region where the nucleus is located. This area is crucial for the processes of fertilization and early development.

2. **Event 1 - Sperm Contact**: The first significant event that occurs at the animal pole is the contact between the sperm and the egg. When a sperm cell penetrates the egg, it travels to the nucleus located at the animal pole. This is the initial step in fertilization, where the genetic material from the sperm combines with that of the egg.

3. **Event 2 - Cleavage Initiation**: The second event that occurs at the animal pole is the initiation of cleavage, which is the process of cell division. Cleavage begins at the animal pole, leading to the formation of multiple cells from the single fertilized egg. The first divisions are typically symmetrical, resulting in two cells, then four, and so on.

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