Why do you think Pteridophytes are known as vascular cryptogams?
Benjamin AlvinThe term "vascular cryptogams" refers to Xylem and Phloem, or vascular tissues, which first appeared in Pteridophytes. ( Cryptogams are the plants that do not produce flowers and reproduce by spores )
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Hudson AnsleyBecause pteridophytes lack the seeds and flowers of higher plants and instead reproduce by spores, they are known as vascular cryptogams. Pteridophytes have vascular tissue for the transportation of water and nutrients.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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