Reproduction core questions -DONT KNOW

2 adaptions of the female sex cell

large food store,half the genetic information in the nucleus

2 adaptaions of the male sex cell

tail to swim,contains 50% of the dna that goes to the offspring in the nucleus

where is sperm made

testes

4 organs that make up the male reproductive system

,testes,sperm duct,uretha,penis

4 organs that make up the female reproductive system

ovaries,uterus,cervix,vagina

what 3 changes happen to female and males during purberty

underarm hair grows,pubic hair grows,sweat more,

what 2 changes happen to females during puberty

breasts develop,menstural cycle

what 2 changes happen to men only during puberty

testes and penis get larger,testes start to produce sperm

what does fertilisation mean

when an egg and sperm nuclei fuse together

what does ejacualtion mean

the release of sperm through the penis

what does implantation mean

when the embyo sinks into the uterus lining

what is the gestation period of a human

40 weeks

what is the fertilised egg called before it implants into the uterus lining

zygote

what makes up the stamen

anther and filament

what makes up the carpel

stigma,style,ovary,ovules

what are the gametes in plants

egg cell and pollen

4 ways seeds are dipersed

wind,water,explosion,animals

what does germination mean

when a seed grows into a plant