Which of the following react directly to light, sound, or other stimuli by sending impulses to other neurons and eventually, to the
central nervous system?
sensory adaptations
absolute thresholds
sensory receptors
accessory structures

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.

the answer would be   10%