Answer:
Although they receive a bad rap from the media and pharmaceuticals, the majority of prokaryotes are either harmless or actually help eukaryotes, such as animals and plants, to survive and only a small number of species are responsible for serious illnesses.
Explanation:
C
Animal cells do not have cell walls or chloroplasts!
There is no single charge on iodine (if you are referring to its oxidizing number). Since it can have more than 8 electrons for its outermost shell (really crazy stuff about atomic orbitals!), It can possess many charges. Like it's basic form I- (-1 oxidizing number), IO3- (-7), IO2- (-5), even I3-!
Answer:
B
Explanation:
heavier particles, which are the ones that move slowly than the lighter particles have a higher temperature
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Because membrane receptors interact with both extracellular signals and molecules within the cell, they permit signaling molecules to affect cell function without actually entering the cell.
