Life Cycle of the Flea
1 The Flea (siphonaptera) is a blood-feeding parasite which can be transfered from host to host. The adult fleas can live as long as two years without feeding. Permitted to go unchecked, they can transmit internal parasites, such as tape worms. They can also be carriers for such diseases as bubonic plague and endemic typhus.
2 The adult female flea will feed two or three days and begin laying eggs. She will lay a few eggs at a time until several hundred have been produced. These eggs are not attached to the host and will normally fall off into the carpet, animal's bedding, or the grass.
3 These eggs hatch into legless larvae. The larvae feed on debris adn adult flea feces for four to eight days.
4 The larvae then spin a cocoon. Depending on conditions, and adult fleas may begin to emerge from the cocoon in as little as five days.
5 The adult flea emerges - ready to begin ghe cycle again. The complete life cycle of the flea may take as little as three weeks.

 
Life Cycle of the Tick
1 The Tick (ixodidate) is an arachnid, or relative of the spider of which most varieties require three hosts to reach maturity. It is a blood-feeding parasite. The adult tick can wait for a suitable host, and can survive two yeras while waiting to drop or crawl onto the host animal. The adult tick feeds and mates on the host.
2 A female tick remains on the host for six to 30 days. The blood engorged female then drops off the host to lay her eggs. Within threee to 83 days, she can lay 1,000 to 3,000 eggs.
3 In approximately 30 days, the eggs hatch into six-legged larvae or "see ticks". After 24 days, the "seed ticks" attach themselves to a host and feed for three to six days.
4 After engorging themselves, the "seed ticks" drop off and molt - in one to two weeks. They emerge from this stage as eight-legged nymphs and attach themselves to the host and feed for four to nine days.
5 After feeding, the nymphs drop off and molt into adults. This molting process takes about 12 days. After approximately 30 days, the adult ticks ae ready to attach themselves to another host animal and begin a new cycle.