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Depending on the species, the blastopore has been reported to become the mouth (protostomy), the anus (deuterostomy), both mouth and anus (amphistomy), or neither (i.e., the blastopore closes).
Spore-forming bacteria. When certain bacteria grow, they have the ability to develop resistance to extreme heat, dryness and chemicals. These bacteria are called spore formers because they develop a shell which is capable of protecting the cell under adverse conditions.The spore is the resting stage of the live bacteria and it can begin to grow into an active cell when proper growth conditions are provided.hese bacteria produce diseases in humans, animals and plants and are called pathogenic bacteria. They are a relatively few in number and produce disease by growing on or in certain tissues and producing harmful poisons or toxins, which people and animals consume. Spoilage bacteria.