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reproduction Flashcards

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Biology 101 flashcards
1
Q

adolescence

A

the period of time when a child changes into an adult

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2
Q

puberty

A

the physical changes that take place during adolescence

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3
Q

sex hormones

A

these are chemical messengers that travel around your body in the blood. female sex hormones are made in the ovaries. male sex hormones are made in the testes

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4
Q

sperm cell

A

a cell containing male genetic material

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5
Q

testes

A

produce sperm and male sex hormones

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6
Q

scrotum

A

the bag of skin that holds the testes

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7
Q

semen

A

fluid containing sperm

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8
Q

sperm duct

A

tube that carries sperm from the testes to the penis

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9
Q

urethra

A

tube that carries urine or sperm out of the body

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10
Q

penis

A

the structure that carries sperm and semen out of the body

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11
Q

sexual intercourse

A

the process where the penis releases semen into the vagina

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12
Q

egg cell

A

a cell containing female genetic material

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13
Q

ovary (human)

A

contains egg cells

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14
Q

oviduct

A

tube that carries an egg to the uterus

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15
Q

uterus

A

where a baby develops until its’ birth

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16
Q

cervix

A

the ring of muscle at the entrance to the uterus. It keeps the baby in place while the woman is pregnant

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17
Q

vagina

A

receives sperm during sexual intercourse. This is where the male’s penis enters the female’s body

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18
Q

gamete

A

reproductive cell, the male gamete is a sperm cell and the female gamete is an egg cell

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19
Q

fertilisation

A

the process where the nucleus of a sperm cell joins with the nucleus of the egg cell

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20
Q

cilia

A

tiny cells on the surface of cells

21
Q

ejaculation

A

when semen is released from the penis

22
Q

embryo

A

a ball of cells that forms when the fertilised egg divides

23
Q

implantation

A

the process where an embryo attaches to the lining of the uterus

24
Q

fetus

A

the name given to an unborn baby from eight weeks of development

25
Q

placenta

A

the organ where substances pass between the mothers and the foetus’s blood

26
Q

umbilical cord

A

connects the fetus to the placenta

27
Q

fluid sac

A

contains fluid, acts as a shock absorber, protecting the fetus

28
Q

period

A

loss of uterus lining through the vagina

29
Q

menstrual cycle

A

the monthly cycle during which the uterus lining thickens and then breaks down and leaves the body if an egg is not fertilised

30
Q

ovulation

A

the release of an egg from the ovary

31
Q

contraception

A

the method of preventing pregnancy

32
Q

condom

A

a barrier method of contraception which prevents semen being released into the vagina

33
Q

contraceptive pill

A

a chemical method of preventing pregnancy

34
Q

petal

A

the brightly coloured part of a flower that attracts insects

35
Q

sepal

A

the special leaves found under the flower which protect unopened buds

36
Q

stamen

A

the male reproductive part of a flower

37
Q

anther

A

the part of the flower that produces pollen

38
Q

pollen

A

the male gamete of a plant

39
Q

filament

A

the part of the flower that holds up the anther

40
Q

carpel

A

the female reproductive part of the flower

41
Q

stigma

A

the part of the flower that is sticky to catch grains of pollen

42
Q

style

A

the part of the flower that holds up the stigma

43
Q

ovary (plant)

A

the plant of the flower that contains ovules

44
Q

ovule

A

the female gamete of a plant

45
Q

pollination

A

the transfer of pollen from the anther to the stigma

46
Q

fruit

A

the part of a plant that contains seeds

47
Q

seed

A

the structure that develops into a new plant

48
Q

germination

A

the period of time when a seed starts to grow

49
Q

seed dispersal

A

the movement of seeds away from the parent plant

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