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Answer: B
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Vascular plants, also known as tracheophytes, form a large group of plants that are defined as those land plants that have lignified tissues for conducting water and minerals throughout the plant. They also have a specialized non-lignified tissue to conduct products of photosynthesis.
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Answer:
he downward slope of the production possibilities curve is an implication of scarcity. The bowed-out shape of the production possibilities curve results from allocating resources based on comparative advantage.
Explanation: