Lifecycles
Frog | Animal | Butterfly | Chicken | Ladybug
WHAT FROGS EAT:
Frogs mostly eat insects, worms, spiders, and centipedes.
WHERE THEY LIVE :
Frogs live all over the world but need a wet place like a pond, lake or stream.
FROG SKIN:
FROGS ARE NOCTURNAL- They hunt at night.
Frog Lifecycle
The female frog lays the eggs in the
pond that have been fertilized by the male.
JELLY BABIES
The eggs are surrounded by jelly,
which absorbs water, swells up, and floats to the surface of the pond where the
sun warms it.
TADPOLE
After about 10 days a tadpole
wriggles out of each egg. At first the tadpole breathes and moves like a fish,
using its gills and long tail, but after about five weeks the gills disappear
and the tadpole develops lungs. It then has to swim to the surface of the water
to gulp air. The tadpole has fleshy lips with rows of teeth for rasping away at
water plants and by seven weeks it also eats insects and even other tadpoles.
FROGLET
By eight weeks the back legs have
formed and by ten to eleven weeks the front legs have also appeared. At twelve
to fourteen weeks the tail disappears and the tiny froglet is ready to leave the
water. It will take three years before the froglet reaches maturity and the
cycle starts all over again.
Animals that Grow Up (Simple Life Cycle):
Most animals including fish, mammals, reptiles and birds have very simple life cycles:
- they are born (either alive from their mother or hatched
from eggs)
- they grow up
These animals have three stages -- before birth, young and adult. The young are typically similar to the parent, just smaller. The young slowly "grow" to become adults.
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Tiny eggs are laid by the female on a leaf. Around 5 days later, a tiny wormlike creature will hatch. |
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The caterpillar is the primary eating and growth stage of the insect. | |
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The pupa or chrysalis is the resting or transformation stage, and within it the marvelous transformation from caterpillar to adult takes place. | |
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The adult emerges
from the chrysalis.
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A butterfly or moth is emerging now. The pupa skin splits, the limp, damp butterfly crawls out-now with compound eyes, a proboscis for feeding and six legs. The wings are expanded and blood is pumping into them. A little warming from the sun and it is now ready to fly off to feed and then lay its eggs. |
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eggs - Ladybugs lay masses of tiny, yellow, elongated eggs on a leaf. They hatch in 3 to 7 days.
larva - Each egg hatches into a long, six-legged larva, which eats
and molts (sheds its skin) many times as it grows. The larval stage lasts 2 to 4
weeks.
pupa - After reaching full size, the larva attaches itself to a
plant leaf or stem (by its "tail"). The larval skin then splits down the back,
exposing the pupa. The pupa is about the size of the adult but is all wrapped
up, protecting the ladybug while the it undergoes a change, called
metamorphosis, into its adult stage.
adult - The adult ladybug emerges from the pupa. It will mate, the female
will lay eggs, and the cycle begins again.
Resources
http://www.enchantedlearning.com/subjects/insects/Ladybug.shtml
http://www.freewebs.com/lifecycleswebquest/resources.htm
http://www.vtaide.com/png/chicken.htm
http://www.enchantedlearning.com/subjects/insects/Ladybug.shtml
http://teachers.eusd.k12.ca.us/atarquin/online%20class/ladybug_life_cycle.htm
http://www.kidzone.ws/animals/lifecycle.htm
http://animal.discovery.com/tv/vanishing-frogs/anatomy/frog-skin.html
http://www.naturehaven.com/Frog/frog.html