Stages of growth
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Transcript of Stages of growth
Stages of growth
Know about the stages of human growth.
Understand reasons for different gestation periods.
Describe some problems in human growth.
Starter: How do a single human sperm and egg produce a mature baby after 9 months?
Put these growth stages in order
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Adolescent
InfantOld man
AdultChild
Childbirth
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Bear cubBeaver kitCat kittenCow calfDog puppyDuck ducklingGoose goslingHen pulletHorse foalKangaroo joeyPig pigletPigeon squabRat kittenShark cubSwan cygnet
Name the offspring of these animals
Gestation periods
Animal Average gestation period (in days)
Dog 61
Giraffe 425
Goat 151
Chicken 21
Golden eagle 44
Human 265
Asian elephant 645
Mouse 19
Finback whale 365
Sea lion 365
Squirrel 44
Skunk 31
Rhinoceros 480
Work to do
• Is there a correlation between type of animal and length of gestation period?
• How does this explain why some animals have longer gestation periods?
• Do animals with shorter gestation periods tend to have more or less offspring?
Work to do
• Read the section in the text book (page 35) on growth of a baby.
• Answer question 15.
Stages of growth
Know about the stages of human growth.
Understand reasons for different gestation periods.
Describe some problems in human growth.
Plenary: Answers to worksheet on growth curves.