3 marksFoundation
A food chain on a farm is: grass → rabbit → fox.
.1What is the grass in this food chain?
[1 mark] .2What do the arrows in a food chain show?
[1 mark] .3In a stable community, what usually happens to the fox population after the rabbit population increases?
[1 mark] 4 marksFoundation
A student tests some foods for starch, sugar and protein.
.1Which solution does the student use to test for starch?
[1 mark] .2The student heats a food with Benedict's solution. The food contains a lot of glucose.
What colour does the mixture turn?
[1 mark] .3Name the solution used to test for protein.
[1 mark] .4Suggest why the student heats the Benedict's test tubes in a water bath rather than directly over a Bunsen burner.
[1 mark] 3 marksFoundation
Fossils are the remains of organisms from millions of years ago, found in rocks.
.1Which two are ways that fossils can form? Tick two boxes.
[2 marks] .2Why are there few fossils of the earliest forms of life?
[1 mark] 3 marksFoundation
The distribution of organisms in a habitat depends on abiotic and biotic factors.
.1Which two are abiotic factors? Tick two boxes.
[2 marks] .2Which resource do plants in a community compete for?
[1 mark] 4 marksFoundation
Diseases can be communicable or non-communicable.
.1Which two diseases are non-communicable? Tick two boxes.
[2 marks] .2What is a carcinogen?
[1 mark] .3Drinking large amounts of alcohol over many years is a risk factor for disease in one organ in particular.
Name this organ.
[1 mark] 