UNIT
6 LIFE CYCLES
6.1 REPRODUCTION
IN LIVING THINGS
Plants
and animals reproduce so that their own kind continue to be found on earth.
Extinct:
living thing do not reproduce enough young to replace those that die.
6.2 LIFE CYCLES
Life cyles: a pattern that repeat
itself.
Stage: part in life cycles
Some might look similar in each
stage, some might look very different.
Some life cyles are short, some are
long.
Animal can reproduce by laying eggs
or giving birth. Beside giving birth, some mammals such as apiny anteater and
platypus reproduce by laying eggs.
Foat-Adult horse
Egg-Chick-Chicken
6.3 LIFE CYCLE OF A
HUMAN BEING
Three
stages of human life cyles.
Egg
– young – adult
6.4 LIFE YLE OF
ANIMALS
·
Life cycle of cat
Egg-kitten-adult
·
Life cycle of frog
Egg-tadpole-adult
·
Life cycle of butterfly
Egg-larva-pupa-adult
·
Life cycle of housefly
Egg-larva-pupa-adult
·
Life cycle of mosquito
Egg-larva-pupa-adult
·
Life cycle of cockroach
Egg-nymph-adult
6.5 LIFE CYCLE OF
FLOWERING PLANTS
·
Life cycle of tomato
Seed-seeding-adult
plant
·
Life cycle of peanut
Seed-seeding-adult plant
Some
plant grow plant part. For example potato. Life cycle of potato are
Tuber-Shoot-Adult
plant.
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