Answer:
Sexual reproduction
Explanation:
Sexual reproduction is defined as the process in which male gamete combine with female gamete to form a new organism.
The given example is a type of sexual reproduction as it involves two different sexes a male poplar tree and a female poplar tree, and pollens from male poplar tree transfers to the sex cells on a female poplar tree result in the process of fertilization.
Hence, the correct answer is "Sexual reproduction".
Germany invaded Poland if thats one of the answer choices
To outline the reasons behind the writing of the US Constitution and the goals of the document.
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