EXCRETORY SYSTEM ..
It includes mainly the kidneys ureters urinary bladder and urethra it works to eliminate the waste products of cell activity through urine which is formed in the kidney stored in the urinary bladder and is voided outside at regular intervals through the urethra
the lungs sweat glands of the skin and intestine also participate in the excretory functions
REPRODUCTIVE SYSTEM
The continuity of the species is maintained by reproduction in the highest evolved organism human being the mode of reproduction is sexual sex is the character which divides the world into two groups male and female
MALE :: in male there are two testes situated in the scrotal bag they form spermatozoa and secrete the hormone testosterone the vas deferens a cord like structure carries the spermatozoa to seminal vesicles and the prostate gland seminal vesicles are situated behind the bladder and open via ducts into the prostate at the mouth of the bladder semen is the male sex secretion and contains billions of live spermatozoa a spermatozoa is the unit of male contribution to start a new life through zygote
FEMALE:: Female reproductive organ include vaginal canal uterus fallopian tubes and ovaries vaginal canal extends from the cervix of the uterus to outside the uterus is the organ where the development of baby takes place it is inverted pear like structure with thick walla
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