If the diploid number of chromosomes in an angiospermic plant is 18, what number would you expect in the endosperm and embryo of that plant?

Explanation

To solve the question regarding the number of chromosomes in the endosperm and embryo of an angiospermic plant with a diploid number of chromosomes equal to 18, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Diploid Number**: The diploid number of chromosomes (2N) in the given angiospermic plant is 18. This means that the haploid number (N) can be calculated as follows:
\[ N = \frac{2N}{2} = \frac{18}{2} = 9 \]
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