Bacteria are so successful because they reproduce asexually meaning that they can make more offsprings at a shorter amount of time. Because they reproduce asexually, if that one bacteria is resistant to a certain other organism, so will its offsprings.
The spider has a venom in their teeth that they inject into your skin when they bite you so you won’t bleed everywhere and your skin has a reaction to the venom because it’s strong enough to have an effect just not strong enough to hurt you.
Gas exchange happens in the D. Alveoli
Go somewhere where there aren't any windows
