Answer: I would say The hypothesis that the juice of the lemon is the only pat of lemon that is capable of removing stains from the t-shirt is because the lemon juice is acidic in nature.
1.) To test the validity of this hypothesis he should test the acidity of different parts of the lemon including the juice, pulp and skin of lemon.
2.) He should also compare the lemon juice with other juices to know weather other juices are also helpful in removing stains from the t-shirt.
( I hope this helped <3 )
Ans.
Plants are multicellular, photosynthetic eukaryotic organisms, having cell walls and chloroplasts. It include bryophytes (mosses), pteridophytes (ferns), gymnosperms or non-flowering plants (conifers) and angiosperms (flowering plants).
Annelids, chordates, cnidarians, mollusks, arthropods, and echinoderms are animals and belong to kingdom Anamelia.
Thus, the correct answer is option). 'mosses, ferns, conifers, flowering plants.
