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This is about reproduction and other science terms.

What is reproduction? how DNA gets passed from parent to offspring all living things do it
2 types of reproduction: Sexual-requires 2 organisms ;has more genetic variation; takes longer Asexual- requires no partner; is much quicker, but very little genetic variation
Functions of the reproductive system: Develops male/female physical traits Produce sex cells Assists in fertilization Produces offspring
Males: has internal and external organs.
Penis:(male) external male organ through which urine and semen flow out the body
Scrotum:(male) protective sac around surrounding testes
Testes:(male) male sex gland, produces testosterone and sperm
Sperm:(male) male reproductive cell, made in the testes
Urethra: (male) duct (tube) where semen and urine travel through
Females: Has only internal organs
Ovaries: (female) female sex glands, produces estrogen, produce egg cells
Egg: (female) female reproductive cell
Oviduct:(female) tube that connects ovary to the uterus; where fertilization occurs; aka the Fallopian tube
Uterus:(female) hollow organ with muscular walls; site where fertilized egg develops into an embryo
Vagina:(female) tube connecting uterus to the outside of the body
Menstrual Cycle every month female body prepares for pregnancy, if no pregnancy then repeats itself every 4 weeks when sperm fertilizes egg, zygote created, then becomes embryo, then fetus
How many chromosomes does a zygote have? four
every embryo cell has how many chromosomes 46
the urinary system is responsible for: removing waste from your body -solid waste is removed by large intestine -gaseous waste is removed by lungs -liquid waste is removed by sweat and the urinary system
the urinary system works with what? the lungs, skin, and intestines
what are the four main parts of the urinary system? the kidneys, ureters, bladder, and urethra
kidneys: two bean shaped organs
blood is constantly filtering through: the kidneys
kidneys filter a type of waste from your blood called: urea
ureters two thin tubes, 8-10 inches long
carry urea from what to what? kidneys to bladder
muscles in ureter do what? they tighten and relax to force urea into the bladder
bladder: hollow muscular organ shaped like a balloon held in place by muscles and other tissues
urethra: short tube exiting body where urea leaves the body final stop in urinary system
the integumentary system consists of: hair, skin, nails, sweat glands
integumentary system is responsible for: protecting the underlying tissue keeping internal temperature collecting sensory information from environmet
skin has three main layers: the epidermis; outer layer the dermis; middle layer the subcutaneous tissue; underneath the dermis
Created by: sophiawilson