The following question refers to the generalized life cycle for plants shown in the figure. Each number within a circle or square represents a specific plant or plant part, and each number over an arrow represents meiosis, mitosis, or fertilization. 
In the figure, which number represents the mature gametophyte?
Definitions:
Gross Profit
The financial metric representing the difference between revenue and the cost of goods sold, before accounting for other expenses.
Vertical Analysis
A financial statement analysis method where each entry for each of the three major categories of accounts (assets, liabilities, and equities) in a balance sheet is represented as a proportion of the total account.
Cost Of Goods Sold
Refers to the total expense directly related to the production of goods or services a company sells.
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