Ovum - to let sperm cell in
Leaf palisade cell - to ease photosynthesis
The tail of a sperm - enables it to swim around the woman to find the egg
- carries strands of genetic information
- enables it to swim in the blood stream
- help you to feel more emotion
- shows you are normal
- you don't want it to work too hard in case it causes a heart attack
- more oxygen will calm you
- because your muscles are tense
- to help the brain cope with the shock
- the heart beat quickened slowly
- you must breathe quickly or you will have too much oxygen in your blood
The baby is soon conceived, usually head-first, and it now starts breathing by itself
When the woman's waters break, the amniotic fluid has contractions
Soon the mother will get the ultimate pain and out will pop the baby
At birth, the baby passes through the Fallopian tubes
Later, the baby gets restless and decides to make an appearance
- one who beast feeds
- one who is working manually, i.e. doing hard work
- one with high level of lactic acid (after birth)
- one who is starting to stop being able to have babies
- one who has had her womb removed
- one with insufficient fibre
- one who is getting old
- one who is producing milk in her glands after birth
- suffering from a disease or disorder
- testes leave the body
- hair grows in the vagina
(As a result of growth in numbers of predators) the population of aphids would decease
Levels within ecological pyramids : 1st & 2nd traffic levels
The middle of the food change
If the population of chiffchaffs went down, sparrowhawks would decrease in size
The image is reversed and sent to the brain via
the optical nerve .... optical fibres .....optimistic nerve
The eye deals with different light intensities by adjusting the amount of lights the eye lets in
(both foxes - the ears shade the face)
Fennec fox
- can hear pray in desert
- needs big hears
- can hear things further away
- could flap its ears to cool itself
- has large ears to help it to see when it gets dark
- could have a sweat gland to excrete water from
- needs big ears to conceal itself
Arctic fox
- can close its ears to keep the cold out
- wants to be aerodynamic
- has small ears which point forwards to focus on prey
- has small ears so as not to hear the wind
- ears are useful for listening for movement on either side
- smaller ears are less hard to attack
- has smaller ears because sound travels farther in the cold
Spines protect any animals (or living things!) eating it
Stem is short so minerals do not have to travel so far
Roots cover a large area looking for water
In vacuum packed food
... bacteria cannot multiply and so preserve the food ... conditions are anearobic
Stainless steal is easily cleaned
When dehydrated, food loses all its liquids
There is more food poisoning in summertime because
... flies bread more ... fills breed more
Food is preserved by irradiation because bacteria are killed so they cannot do their job
The fruit (added to yoghurt) is treated to make it the same as the milk
Spores can be carried on the wing
When you place polythene over it
..... the bread cannot breathe .... the bread sweats
At this temperature the yeast was being killed so it did not breed
(Comment on shape of graph) The volume increases and decreases in an irratic manner
Q How can bacteria be transmitted from person to person?
A1 By mixing bodily fluids - saliva, blood, semen
A2 If someone has a byte of food then so does another person
1 remove a person's blood
2 destroy the infection
3 regular visits to the local rector
- anti incest cream
- complete all chores during the day
- take precautions at night
- they must be all male or female
- make sure the people are old and possibly expendable
- all should be in good condition and drink bad water.
The photograph acts as a filter in the sewage works
In an activated sludge tank, faeces and mud float to the bottom
As it passes through the rocks, the sewage liquid becomes more soluble
Part of the process involves activated slug
If the treatment of sewage was inadequate, the government would impose barriers
The sewage works can then see the effect that they have on the environment
The hair follicle needs a blood supply so your hair can stay alive at the bottom
Melanin protects against ultra violet Ray
We used pippets to put drops of oil in the measuring cylinder
List effects of alcohol on the body: baby in the womb
Food stays in the stomach for up to 3 hours before being realised
A balanced diet keeps you away from illness
Fat keeps you insulated by giving you a fatty layer above the skin
The animal cell appears to have no apparent shape
We need protein for rebuilding lost cells
The amount of water must be below the point at which the bean seed is "drowned" and consequently depraved of oxygen
When no water was used this provided an extreme minimum
We kept the beans in some quiet shallow containers.
Homeostasis tells the brain when to go to the toilet
Negative feedback is when you urinate
Why does pondweed produce carbon dioxide in the dark? It is asleep
How does sugar (produced in a leaf) reach the roots?
Sugar is heavier than water and it sinks to the roots
As you pick up a book your arm relaxes .... later on your arm contracts
(Description of a voluntary action) .... this sends nerves down the spine
Muscles of the arm ... the foreceps
When cold the body absorbs less urine to cool itself down
External digestion means that the fungus disgusts the food away from its body
Food should be chewed before being swallowed - so that the tongue can roll it into a bolas
The asouphagus
Function of a drone bee: to fertiliser the eggs which the queen produces