The distribution of organisms in a habitat depends on abiotic and biotic factors.
.1
Which two are abiotic factors? Tick two boxes.
[2 marks].2
Which resource do plants in a community compete for?
[1 mark]OCR Gateway GCSE Combined Science June 2024 Paper 2
5 questions on this paper's topics
21:001 of 5
A food chain on a farm is: grass → rabbit → fox.
.1
What is the grass in this food chain?
[1 mark].2
What do the arrows in a food chain show?
[1 mark].3
In a stable community, what usually happens to the fox population after the rabbit population increases?
[1 mark]Organisms reproduce sexually or asexually.
.1
Which statement describes asexual reproduction?
[1 mark].2
Which two are gametes in flowering plants? Tick two boxes.
[2 marks].3
Name the type of cell division that produces gametes.
[1 mark]Pathogens are microorganisms that cause infectious disease.
.1
Which type of pathogen causes measles?
[1 mark].2
How is measles spread from person to person?
[1 mark].3
Which two actions reduce the spread of salmonella food poisoning? Tick two boxes.
[2 marks]A student tests some foods for starch, sugar and protein.
.1
Which solution does the student use to test for starch?
[1 mark].2
The student heats a food with Benedict's solution. The food contains a lot of glucose.
What colour does the mixture turn?
[1 mark].3
Name the solution used to test for protein.
[1 mark].4
Suggest why the student heats the Benedict's test tubes in a water bath rather than directly over a Bunsen burner.
[1 mark]