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  1. 1. The egg is a tiny, round, oval, or cylindrical object, usually with fine ribs and other microscopic structures. The female attaches the egg to leaves, stems, or other objects, usually on or near the intended caterpillar food.
  2. 2. The caterpillar (or larva) is the long, worm-like stage of the butterfly or moth. It often has an interesting pattern of stripes or patches, and it may have spine-like hairs. It is the feeding and growth stage. As it grows, it sheds its skin four or more times so as to enclose its rapidly growing body.
  3. 3. The chrysalis (or pupa) is the transformation stage within which the caterpillar tissues are broken down and the adult insect's structures are formed. The chrysalis of most species is brown or green and blends into the background. Many species overwinter in this stage.
  4. 4. The adult (or imago) is colourful butterfly or moth usually seen. It is the reproductive and mobile stage for the species. The adults undergo courtship, mating, and egg-laying. The adult butterfly or moth is also the stage that migrates or colonizes new habitats.
  5. 5. • Life cycle of a frog: web-footed amphibian which lives near lakes and • ponds. Moves by swimming and jumping. • Adult frog: mature frog. • Tadpole frog: phase of the life cycle of a frog between tadpole and adult. • Start of pulmonary respiration: the beginning of respiration with the lungs. • Front legs break through: beginning of the development of the rear limbs. • Tadpole: frog larva. • Embryo: frog still in the egg. • Eggs: cell resulting from a fertilized ova which contains the frog embryo. •
  6. 6. Mom and Dad Frog Decide to Have Baby Frogs The life cycle of a frog starts when mom and dad frog fall in love and decide to have baby frogs.nobody really knows if frogs fall in love, Mom and Dad Frog Decide to Have Baby Frogs but it’s okay to think that they do. Mom and dad frog will mate, either in the water or in a tree, depending on what kind of frogs they are. The life cycle of a frog starts when mom and dad frog fall in love and decide to have baby frogs. Okay, nobody really knows if frogs fall in love, but it’s okay to think that they do. Mom and dad frog will mate, either in the water or in a tree, depending on what kind of frogs they are.
  7. 7. Spawning Mom frog will lay a bunch of eggs for the dad frog to fertilize. Unlike human eggs, frog eggs are fertilized by dad frog when they are outside of the mom frog’s body. This is called spawning and is the very beginning of the frog life cycle. After the mom and dad frog have finished spawning, dad frog leaves, and sometimes the mom frog does, too. Sometimes mom frog will stick around, though, and wait for the baby frogs to hatch so that she can care for them, but this only happens with some breeds of frogs, not all of them.
  8. 8. The Frog Eggs Mom frog will lay a whole bunch of eggs because most of them won’t hatch. Some of the eggs will be eaten by other small animals and birds, and some of them won’t become fertilized. Other eggs might become dried up in the sun or get broken in the water. The eggs that survive will hatch after about 7 to 9 days and begin the frog cycle and start the many life stages of a frog. But they don’t get to be frogs just yet; they have to go through the tadpoles’ life cycle first.
  9. 9. The Tadpole When frog eggs hatch they don’t come out as frogs right away, they have to start out as tiny little fish-like creatures called tadpoles. In the beginning 7 days or so of tadpole development, a tadpole will eat the egg yolk that is still left in its gut. The only parts to the baby tadpole are the gills, the tail, and the mouth. After about 7 days of tadpole development, the tadpole will begin to swim around on its own and eat algae from the top of the water.
  10. 10. Tadpole Development About four weeks into the tadpoles life cycle it will begin to grow teeth and skin over the gills and will begin to become social and swim in schools like fish. Then 6 to 9 weeks into the tadpoles development it will begin to grow longer and develop a little bit of a head and some legs. At the end of the 9 weeks, the tadpole will look more like a frog than a fish, but with a long tail. The tadpole will also start to eat things like tiny insects. In areas of the world that have cold winter months or that are in very high altitudes, which also are sometimes very cold places, the tadpoles life cycle takes all winter long to complete.
  11. 11. Frog Metamorphosis From 9 to about 12 weeks, the frog metamorphosis starts to really take shape. The tadpole that looks like an itty bitty frog but with a long tail (called a Froglet) will lose most of its tail, grow a frog tongue, and start to really look like a baby frog. The whole frog life cycle model is completed after about 16 weeks when the frog becomes an adult.