A oxygen makes the red show more easily than carbon dioxide because carbon is black and darkens the colour of the blood.
dyes the blood darker than O2
Effects of carbon monoxide:
Red blood cells can be reversed but carbon monoxide will not leave the red blood cells.
The glomerulus takes out the parts it thinks it needs to take out.
Homeostasis: the body's way of controlling the climate.
Less urine was produced on a warm day because:
- he was retaining sweating moisture to keep him cool
- sweat and urine are the same thing
- sweat is cool
Negative feedback is when the feedback does not happen as there is something wrong.
When wearing wet clothes on a windy day :
- the wind turns the wet into cold
- your body heat is evaporated out
- you may get ammonia
In diabetes the prostate gland does not produce any insulin.
Solution to a kidney problem: kidney transport.
Functions of a fermentation lock:
- to trap natural air inside the wine
- it ensures that excess air does not get in
- it ensures that wrong air does not disturb the process
- to stop the organism that is fermenting from escaping
- when an organism has another organism growing out of it, which should soon detach itself
- when 2 bits fuse so they can multiply
- expanding its given load
Q What does an omnivore eat?
A both meat and vegetables
If all the greenflies were killed, how would this affect the rose bushes and ladybirds?
- ladybirds would weaken
- rose bushes would die because no one would eat them
- rose bushes would grow prettier and ladybirds would migrate to other countries
Difference between pyramid of numbers and pyramid of biomass:
pyramid of biomass can stay the same as it goes up
Concentration of carbon dioxide (read from graph):
350 million parts
Explanations of the greenhouse effect
- when hot air rises, CO2 gets trapped
- The atmosphere is made of CO2 and is getting thicker
- CO2 has thickened the atmospere so is letting less heat out
- increased birth rate
- spraying crops with insect repellent
Function of iodine solution when examining plant cells under the microscope:
to brighten the picture
Part of the microscope: thick tune focus