Dead leaves and dead trees are? Abiotic or Biotic 

Biotic

Explanation:

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When is a tree considered dead? If a tree is showing cracks in the trunk, bark that is flaking or falling off or fungus growing under one of the branches, your tree is dead. These signs mean that your tree is not able to absorb nutrients anymore and will no longer grow new leaves and branches.

Explanation:

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both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.