Biology
Correct the following statements by changing the first/ last word only :
- Robert Hooke identified the different types of blood groups.
- A faster heart beat is usually an indication of hypotension.
- WBCs produce special substances called antigens.
- Thrombocytes contain haemoglobin.
- Arteries possess valves.
Circulatory System
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Answer
- Karl Landsteiner identified the different types of blood groups.
- A faster heart beat is usually an indication of hypertension.
- WBCs produce special substances called antibodies.
- Erythrocytes contain haemoglobin.
- Veins possess valves.
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