Answer:
mutualism and parasitism
Examples:
mutualism: crocodiles and birds
parasitism: mosquitoes and humans
Answer:
It is important to measure the performance of an economy as this will help businesses make good decisions about the future
Explanation:
The tree provides chemicals by using sunlight as a food.
Answer is B
The correct answer is: [B]:
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"it is based on the idea that all the present continents were one supercontinent".
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