The photograph shows a crocodile holding its mouth open to allow a crocodile bird to feed - Edexcel - GCSE Biology - Question 6 - 2012 - Paper 1
Question 6
The photograph shows a crocodile holding its mouth open to allow a crocodile bird to feed.
(i) Complete the sentence by putting a cross (X) in the box next to your ... show full transcript
Worked Solution & Example Answer:The photograph shows a crocodile holding its mouth open to allow a crocodile bird to feed - Edexcel - GCSE Biology - Question 6 - 2012 - Paper 1
Step 1
Complete the sentence by putting a cross (X) in the box next to your answer.
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Answer
The correct answer is B: mutualism. This relationship is mutualistic because both the crocodile and the crocodile bird benefit from this interaction. The crocodile bird eats parasites and food debris from the crocodile's mouth, which helps keep the crocodile healthy, while the bird gets food.
Step 2
Suggest why this relationship is beneficial to the crocodile.
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Answer
This relationship is beneficial to the crocodile because the crocodile bird helps to clean its mouth by eating parasites and leftover food, which can otherwise cause infections or attract other pests.
Step 3
State the type of organism that is found at the start of most food chains.
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Answer
The type of organism that is typically found at the start of most food chains is a producer, such as plants or phytoplankton, which can create their own food through photosynthesis.
