These waves can pass through solids, liquids and gases. these are the fastest seismic waves, and are the first to be detected.

answers:
1. l waves

2. s waves

3. p waves

4. surface waves

substitution is the answer in this case

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.