1. How long will it take for a bacterium with a generation time of 12 min./gen. to 30 generations?
2. What is the generation time for a bacterium that has grown to 21 generations in 7 hours
3. How many generations will there be for a bacterium that has generation time of 50 min/gen after 5 hours
4. How many cells are in a bacterial colony that started with 22 cells and has generation time of 45 min/gen after 3 hours
5. A certain bacteria has a generation time of 2 hours/gen after hours , what is the population of it started with 35 cells ?

Lyme disease is caused by a bacterium transmitted to people by deer ticks. deer ticks are almost never born infected with the bacterium, but they can pick it up from feeding on an infected host in any of the tick's three successive stage of development: larva, nymph, adult. once infected, a tick remains infected through any subsequent developmental stages, but since a tick feeds on only one host in each stage, it follows that . people can be infected only by being bitten by a tick that is either in larval stage or in the nymph stage b. people cannot be infected by a tick that picked up the lyme disease bacterium in the adult stage c. it is not possible for a person to be infected by a tick that is in the nymph stage or by a tick that was infected with the bacterium while in the nymph stage d. people infected with the lyme disease bacterium cannot transmit bacterium to adult deer ticks e. only deer ticks that are adults can transmit the lyme disease bacterium to people