Reproduction Flashcards
list the 6 asexual
budding, binary fission, vegetative propagation, fragmentation, parthenogenesis, spores
budding
- Budding is when the offspring is grown off of the parent
binary fission
- Binary fission is when the parent cell divides itself into 2 making offspring with the same DNA
spores
- Spores are mobile and when released from parent cell, will generate into new organism
vegetaive propagation
- Vegetative propagation is when non sexual parts of the plant reproduce (like stem, roots)
fragmentation
- Fragmentation is when the parent breaks into parts and new offspring generates off those parts
parthenogenesis
- Parthenogenesis is unfertilized eggs developing into offspring
advantages of asexual
- less time
- less effort
- more offsrping
disadvantages of asexual
- all offspring is identical
enbironemntal changes could be deathly - one disease could wipe out whole colony
sexual reproduction
Sexual reproduction is when 2 parents combine together through conception to make offspring
male parts of a flower
stamen, filament and anther
femal parts of a flower
carpel, stigam, style, ovary
pollination
Pollination is when pollen grains stick on the sticky stigma
fertilizaion in flowers
Fertilisation takes place inside the ovary when the nucleas of a pollen grain fuses with the nucleus of an ovule
self pollination
Self pollination is when the pollen grain lands on the stigma of the own flower.
cross pollination
. Cross pollination is when pollen lands on the stigma of a different flower, mixing genetic material
hermaphoridtes
Hermaphrodites contain both male and female reproductive organs eg tapeworms
external fertilization
Its when the female gametes get fertilisezd out of the females body. Fish go through external fertilization.
testes
a. Testes produce sperm to be ejaculated and sit in the scrotum. Also produce the hormone testosterone.
scrotum
b. Scrotum the sac that holds the testes protecting them
epididmys
c. Epididymis long coiled tube that is on each testicle that carries and stores sperm cells and works to mature the sperm
sperm duct (vas defrens)
d. Vas deferens (sperm duct) muscular tube traveling from epididymis to urethra that transports mature sperm for ejaculation
seminal vesciles
e. Seminal vesicles add fluid to the sperm containing sugars to give sperm energy