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Answer:
A. Revise the hypothesis based on the results and use it to design another experiment.
Answer:
A pteridophyte is a vascular plant that disperses spores. Because pteridophytes produce neither flowers nor seeds, they are sometimes referred to as "cryptogams", meaning that their means of reproduction is hidden. Ferns, horsetails, and lycophytes are all pteridophytes.
Explanation:
The answer is B because convection is the transfer of heat without two objects touching.
