its d . electron because it has a negative charge of however many there are that are circling the atom
7: symbiotic relationship
8: mutualism
9: commensalism
Amoebas use extensions of their cell membrane (called pseudopodia) to move, as well as, to engulf food. When the pseudopodium traps a bit of food, the cell membrane closes around the meal. This encasement forms a food vacuole. Hope this helps.
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Answer:
Karyogram of a male with Down syndrome.
