The animal shown in Figure 3 is a tick burrowing into the skin of a human - Edexcel - GCSE Biology - Question 2 - 2020 - Paper 1
Question 2
The animal shown in Figure 3 is a tick burrowing into the skin of a human.
(a) Use words from the box to complete the sentences.
enzymes
parasites
food
herbi... show full transcript
Worked Solution & Example Answer:The animal shown in Figure 3 is a tick burrowing into the skin of a human - Edexcel - GCSE Biology - Question 2 - 2020 - Paper 1
Step 1
2(a)(i) The tick burrows into the skin to obtain
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Answer
food.
Step 2
2(a)(ii) Name the type of relationship where both the oxpecker and the zebra benefit
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Answer
This is known as mutualism, where both species benefit from the relationship.
Step 3
2(c)(ii) Complete the food chain that includes zebras, ticks, oxpeckers and grass
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grass → zebras → ticks → oxpeckers.
Step 4
2(d)(ii) Describe the difference in the maximum number of oxpeckers on the white rhino and on the hippo
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There are more oxpeckers on the white rhino than on the hippo. Specifically, there are approximately 5 oxpeckers on the white rhino, while on the hippo there are about 2 oxpeckers, meaning that the white rhino has around 2.5 times more oxpeckers than the hippo.
Step 5
2(d)(iii) Give one reason why more oxpeckers were observed on giraffes than on zebras
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One reason is that there are more ticks or food available on the giraffes than on the zebras, providing a greater opportunity for the oxpeckers to feed.
