Astudent hypothesized that drinking tea would cause an increase in pulse rate. he measured his pulse
20 minutes after drinking a glass of tea. it was 86 beats per minute. state one error in the experiment.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

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.