Biology

Question 1

Ovaries

Answer 1

Stores and releases eggs

Question 2

Fallopian tubes

Answer 2

Carries the eggs to the uterus fertilization occurs here

Question 3

Uterus

Answer 3

Is where the fertilized egg becomes implanted and finds nourishment

Question 4

The cervix

Answer 4

Leads from the vagina to the uterus

Question 5

The vagina

Answer 5

Holds the male penis during sexual intercourse

Question 6

Ovulation

Answer 6

An egg is released from the ovary an average of every 28 days

Question 7

Mensturation

Answer 7

The uterus becomes thicker and rich in blood vessels to be ready to receive the egg. If the egg is not fertilized by a sperm the thickened uterus lining is not needed and breaks away. The lining and a small amount of blood pass out through the vagina day (1-5) this is called a menstruation or a
period.

Question 8

Menstruation

Answer 8

Another word for menustration is a period

Question 9

Fertile period

Answer 9

These are the days of the menstrual cycle when the woman is most likely to become pregnant,intercourse 2 or 3 days before during or after ovulation could lead to the fertilization because sperm cells can survive for this long

Question 10

Pause to menstrual cycle

Answer 10

If an egg is fertilized,the menustrual cycle is paused for the duration of pregnancy the first sign of pregnancy is often that menustration does not happen

Question 11

Menopause

Answer 11

Signals the end of a females ability to reproduce and also the end of her menstrual cycle. It happens at different menstrual cycle . It happens at different ages for different people,typically in the late 40s to early 50s

Question 12

Testes

Answer 12

Produce sperm

Question 13

The scrotum

Answer 13

Where the testes are it is located outside the body to ensure the temperature is lower than body temperature for healthy sperm

Question 14

The epididymis

Answer 14

Is a coiled tube on the outside of each testes that stores sperm and allows them to mature fully

Question 15

The vas deferens

Answer 15

Brings the sperm from the testes to the penis

Question 16

The seminal vesicles ,prostate gland and Cowper’s gland

Answer 16

Produce seminal fluid which mixes with sperm to form seamen,it nourishes the sperm and allows them to swim

Question 17

Penis

Answer 17

Enters the female and ejaculates seamen

Question 18

Puberty

Answer 18

Describes when the body starts becoming sexually mature or normally happens between the ages of 10 and 16

Question 19

Male puberty

Answer 19

In males,sex hormones(testosterone ) are released causing the voice to deepen,hair grows around sex organs,face,chest, and underarms, the testes and penis grow bigger

Question 20

Female puberty

Answer 20

In females when the sex hormones (estrogen and progesterone) are released the breasts develop,hips widen,and hair grows on body. The first egg is released from the ovaries which leads to the first period occurring. An egg will be released every month until menopause

Question 21

Fertilization

Answer 21

If an egg is present in the Fallopian tube and a couple have sexual intercourse then one of the sperm cells may fuse with it,the nuclei of the sperm and egg fuse together to form a fertilised egg. The woman is now pregnant.

Question 22

Embryo

Answer 22

The fertilised egg then divides a number of times and the tiny group of cells moves down the Fallopian tubes to the uterus. This group of cells settles into the lining of the uterus and continues to divide and form an embryo

Question 23

Zygote->embryo->foetus

Answer 23

Egg and sperm fuse to form a signal 
->zygote 
Cell division occurs and growth 
->embryo 
Which attaches to the lining of the uterus grows more,and after 8 weeks looks like a human 
->foetus

Question 24

Biblical cord

Answer 24

A tube called the umbilical cord joins the embryo to the placenta

Question 25

Placenta

Answer 25

The placenta is rich in blow vessels,it is here at placenta that food and oxygen from the mothers blood pass into the baby’s blood,also wastes such as carbon dioxide pass from the baby’s blood into the mother

Question 26

Labour

Answer 26

The birth of a baby begins when the uterus muscles start to contract

Question 27

Waters break

Answer 27

The bag of amniotic fluid bursts water break and further contractions push the baby out of the vagina head first

Question 28

Lactation

Answer 28

The mother may choose breastfeed the infant,the production breast is called lactation

Question 29

Colostrum

Answer 29

The first 3 days of milk is called colostrum very nutritious and helps the baby from infection

Question 30

Family planning

Answer 30

To control the number of children you have you need to control the number of times fertilization takes place

Question 31

Artificial methods of contraception

Answer 31

Prevent the sperm and egg meeting, an example of this a condom which prevents sperm entering the vagina,another example is the contraception pill which prevents ovulation,it is important to realize no method is 100% reliable

Question 32

Omnivore

Answer 32

An animal that eats both plants and animals e.g. badger,thrush,blackbirds,humans

Question 33

Decomposer

Answer 33

Organisations that feed on dead plants and animals e.g earthworms,bacteria,fungi. (Decomposers are very important as they break down dead things and release lots of mineral into the soil

Question 34

Feeding levels

Answer 34

The position of an organism in the food chain is called a feeding level.

The amount of energy gets less and less as you go along the food chain.

Question 35

A food web

Answer 35

A food web is two or more interconnected food chains