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7 - BIOLOGY - HUMAN BIOLOGY Flashcards

(26 cards)

1
Q

What is Fertilisation?

A

It is the joining of genetic material in a sperm and an egg

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2
Q

What is puberty?

A

It is to change the body to get ready for reproduction

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3
Q

What happens to girls during puberty?

A

Growth spurt
Pubic hair grows
Breasts grow
Menstrual cycle begins
Hips widen

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4
Q

What happens to boys during puberty?

A

Growth spurt
Pubic hair grows
Voice deepens
Sperm production starts
Sex organs grow bigger

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5
Q

How many days does the menstrual cycle take?

A

28

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6
Q

What is menstruation?

A

It is when the uterus lining sheds; it lasts about 5 days

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7
Q

What is the menstrual cycle preparing a woman for?

A

Pregnancy

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8
Q

What day is ovulation?

A

14

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9
Q

Where does the baby develop after the woman is pregnant?

A

The uterus

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10
Q

What is the fluid that surrounds the baby inside the uterus to cushion it?

A

Amniotic

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11
Q

How does the baby get nutrients and oxygen?

A

Via the placenta and umbilical cord

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12
Q

What job does the placenta and umbilical cord do?

A

It supplies oxygen and nutrients to the baby but also removes its waste

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13
Q

How long does pregnancy last for?

A

9 months

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14
Q

What do the muscles in the uterus do to help push the baby through the cervix and vagina?

A

Contract

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15
Q

What does a petal do?

A

It attracts insects

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16
Q

What does an anther do?

A

Produces pollen

17
Q

What does the stigma do?

A

It has a sticky surface and it receives and traps the pollen

18
Q

What does the style do?

A

It holds the stigma up and connects it to the ovaries

19
Q

What does the ovary contain?

20
Q

What is pollination?

A

It is the transfer of pollen between one flower to another

21
Q

What can pollen be carried by?

A

Wind and insects

22
Q

What does the pollen do in plant reproduction?

A

It fertilises the eggs which will develop into seeds

23
Q

What are the different types of seed dispersal?

A

Water
Animal
Explosion
Wind

24
Q

What is reproduction called when only one parent is required?

25
What type of reproduction do microorganisms use?
Asexual
26
What nutrient is used to grow microorganisms?
Agar