Which one of the following comparisons of inhaled and exhaled air is correct?
Tooth decay can be caused by:
The correct equation for photosynthesis is:
Many leaves are adapted to photosynthesise effectively by having:
Sea breezes result because:
When we sweat, we lose heat because:
Measuring plant growth by measuring height is convenient, but inaccurate because:
Which of the following properties of water is not important to the survival of living things?
Which statement is not true of sperm and ova?
Each of the features of our bodies is controlled by a:
Which of the following are all deficiency diseases?
Atherosclerosis is a process in which:
Veins have valves because
We lose water mainly in:
We do not see an object if rays of light from it are focussed on the blind spot because:
Hormonal methods of contraception work by:
Absolute zero is:
The workplace should be:
When we are too hot, more blood flows through the capillaries near the surface of the skin. This helps us to cool down because the blood loses heat by:
Water reabsorption is controlled by:
Which one of the following pairs of definitions is correct?
In a simple reflex action:
Which one of the following best describes hormones?
Excretion is best defined as:
Urea is made from surplus proteins in:
Three factors that increase the risk of coronary heart disease are:
The density of seawater is:
Which one of the following lists only differences between aerobic respiration and anaerobic respiration?
When something gets hotter, the particles in it gain more:
Which of the following statements about anaerobic respiration is true?
The main parts of the human circulatory system are:
Why is testing a leaf for starch a reliable indication that photosynthesis has taken place?
When carbon dioxide gas passes through limewater, the limewater:
Which one of the following best compares the eye and a camera?
Which one of the following is correct. When we digest our food:
Some foods contain flavour enhancers. These food additives:
Demersals are fish that are found:
The point where two neurones connect is called:
The particles in a liquid:
Results: (%)0 Correct | 0 Wrong