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sexual reproduction in humans, a pair of sperm duct - Coggle Diagram
sexual reproduction in humans
reproduction in humans
function
bear offspring
to ensure the continuity of the species
heredity
passing of traits from parents to offsping
family tree
shows the occurrence of a trait from one generation to the next
sample questions
example of traits
straight / hitchhiker's thumb
ability to roll tongue
attached / detached earlobe
closed or gapped front teeth
types of reproduction
asexual
offspring is an exact duplicate of the parent
sexual
offsprings show different traits from both parents
fertilisation
fusion of the egg and sperm
pregnancy
internal fertilisation
occurs inside the female reproductive system
elephants
humans
external fertilisation
frogs
fishes
A pair of testes / testicles
scrotum
a pouch of skin containing the testes
urethra
tube that carries urine & sperms
penis
organ that contains the opening of the urethra
female reproductive system
a pair of overies
release eggs in the oviducts monthly
born with a fix number of eggs
mensrtual cycle
singular: ovary
a pair of oviducts
tubes where fertilisation occurs
singular: oviduct
womb
hollow muscular organ where the foetus develops and grows
gestation
vagina
tube through which the baby passes out of the womans body during birth
a pair of sperm duct
singular: testis
produce sperms