Okay... I got all the answers. Thanks for the helps anyways. :( I just at least need one help.

1. In plants, sexual reproduction occurs when sperm and egg unite to form a...

a. gamete
b. gametophyte
c. sporophyte
d. zygote

Is it a or d?

OH! Thank you, thank you, thank you! You are truly the BEST Oscar! Thanks!

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Thank you!!

The correct answer is d. zygote.

To get the answer, we need to understand the process of sexual reproduction in plants. During sexual reproduction in plants, the male gamete (sperm) and the female gamete (egg) unite through a process called fertilization. This union forms a zygote, which is the first cell of the new organism.

In this question, the options given are gametes, gametophyte, sporophyte, and zygote. A gamete refers to a mature sexual reproductive cell like sperm or egg, so it is not the correct answer. A gametophyte is a haploid plant that produces gametes through mitosis, which is a stage within the plant's life cycle and not the immediate result of the sperm and egg uniting. A sporophyte refers to the diploid stage of the plant's life cycle, which is the result of fertilization and meiosis. Therefore, the correct answer is d. zygote, as it is the outcome of the union of sperm and egg during sexual reproduction in plants.