Answer:
Unlike protons, electrons can move from atom to atom. If an atom has an equal number of protons and electrons, its net charge is 0. If it gains an extra electron, it becomes negatively charged and is known as an anion. If it loses an electron, it becomes positively charged and is known as a cation.
I would have to go with b or c
Answer: D
Explanation:
Many unicellular organisms live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating other organisms. Plant-like protists, and some types of bacteria, can make their own food through photosynthesis.
Am certain that the aquifex bacteria might be classified as extremophiles.
Exremophiles are organisms that have been discovered on earth that survive in environments that were once thought not to be able to sustain life. The extreme environments include intense heat, highly acidic environments, extreme pressure and extreme cold. <span />
