How do I explain this? ‘The plant shows the characteristic responding to environment because...’

phototropism : shoot grows upwards in response to light stimulus.

hidrotropism : roots grow to the area with the highest water concentration.

geotropism : a coordinated process which shoot grows against gravity while root grows down the gravity.

the wires in the toaster turning red and the toast crisping and turning brown

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.