The animal shown in Figure 3 is a tick burrowing into the skin of a human - Edexcel - GCSE Biology Combined Science - 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:
(i) The tick burrows into the skin... 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 Combined Science - Question 2 - 2020 - Paper 1
Step 1
Use words from the box to complete the sentences:
(i) The tick burrows into the skin to obtain
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Answer
food.
Step 2
(ii) This means that ticks are classed as
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Answer
parasites.
Step 3
When skin is cut a blood clot forms.
(i) Name the part of the blood to complete the clotting process?
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Answer
C platelets.
Step 4
(ii) Complete the food chain that includes zebras, ticks, oxpeckers and grass.
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Answer
Grass → Zebras → Ticks → Oxpeckers.
Step 5
(i) Describe the difference in the maximum number of oxpeckers on the white rhino and on the hippo.
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Answer
There are typically more oxpeckers observed on white rhinos compared to hippos due to the availability of ticks on their skin, which are the primary food source for the oxpeckers.
Step 6
(ii) Give one reason why more oxpeckers were observed on giraffes than on zebras.
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Answer
Giraffes have more exposed skin and provide easier access for oxpeckers to feed on the ticks.
