2. Mitosis - the process by which most cells divide - PowerPoint PPT Presentation

1. Life cycle - the stages of change that an organism goes through during its life 2. Mitosis - the process by which most cells divide https://www.youtube.com/watch?v=ZO2qZF1WB3Y

• All animals and plants go through an adult stage in their life cycle. • Organisms of the same type go through the same stages of change (mammals, birds, frogs, snakes, plants)

Human Life Cycle 1.Embryo 2.Fetus 3.Newborn 4.Infancy 5.Childhood 6.Adolescence 7.Adulthood 8.Old age

3.Embryo - the early stage in which a plant or animal begins to grow 4.Infancy - the stage after a baby is born (0-2 years) 5.Childhood - the stage after infancy, gaining independence (2-12 years old) 6.Adolescence - the stage after childhood, usually includes rapid growth (ages 12-20) 7.Adult - the stage in which an organism if fully developed (in humans 20+ years)

The Life Cycle of a Butterfly 1. egg 2.Larvae 3.Pupa 4.adult

The Life Cycle of a Frog 1.Egg 2.Tadpole (fish like) 3.Froglet 4.Adult frog https://www.youtube.com/watch?v=wAcwjWi6I9Y

8. Complete metamorphosis - has 4 distinct stages: egg, larva, pupa, and adult. 9.larvae : the caterpillar or worm-like stage in the The Lif Th ife Cy Cycle e of of a a Lady dybug ug life cycle of some insects 10.pupa : an insect in the stage of its life cycle in which it changes from a larvae to an adult

The Life Cycle of Fish 11. Fry - tiny fish that resembles an adult fish 12. Spawning - a method of reproduction in which a very large number of eggs are laid so that some will survive predators

13. incomplete metamorphosis - has 3 distinct stages: egg, nymph, and adult. 14. nymph - a young insect in the stage of its life cycle in which is looks like a small adult Th The Life e Cy Cycle of a Pr Praying ng Ma Mant ntis

The Life Cycle of a Plant 1.Seed 2.Seedling 3.Adult plant 15.Germinate - to begin to grow from a seed *Life cycles can start over through germination

Regeneration 16.regeneration: the process of re-growing lost tissues. ✓ Spiders can regrow missing legs or parts of legs ✓ Sponge cells can divide and will regrow and combine exactly as before ✓ Starfish that lose arms can grow new ones

Cloning and DNA 17.Chromosome - a threadlike structure in the nucleus, made up of DNA 18.Clone - any organism whose genetic information is identical to its parent