Should glucose erythrocytes leukocytes and protein appear in the urine

NO, they should not. Erythrocytes, leucocytes, and proteins (albumin) are not small enough to pass through the capillaries of the glomerulus unless there is damage to the glomerulus. However, glucose does pass through into the glomerular filtrate. Nonetheless, glucose is fully reabsorbed back in the proximal convoluted tubule (unless you have severe diabetes).

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.