These are the biological and physiological features that differentiate males from females, such as reproductive organs. They are present from birth and play a direct role in reproduction.
Think of primary sex characteristics like the main ingredients in a recipe. For example, if you're making a pizza, the dough and tomato sauce would be your primary ingredients because without them, it wouldn't be a pizza at all.
Gonads: These are the primary reproductive organs (testes in males and ovaries in females) that produce gametes (sperm or eggs).
Gametes: These are reproductive cells (sperm in males and eggs in females) produced by gonads.
Sexual Dimorphism: This refers to physical differences between male and female individuals of the same species beyond their sexual organs, often including size, coloration, or body structure.
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