Transcript Seed: Each seed contains a plant embryo. Each seed contains food

All the stages of an organism’s life
Seed:

Each seed contains a plant embryo.
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Each seed contains food for the embryo.
The food helps the embryo survive during the
time it cannot make its own food.
A tough outer case protects the embryo
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Germinate:
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Seeds do not always germinate right away;
they can wait for extensive periods of time to
grow.
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When a seed germinates, it begins to grow.
A seed needs water, nutrients and the right
temperature to grow.
Seedling:
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After the seed germinates, it grows into a
young plant called a seedling.
It looks like its parent because of heredity.
Color and size (height and weight) are
examples of heredity.
Stages of the Life Cycle:


Seeds germinate into a plant.
The plant grows, develops, reproduces and
then dies.
How Are Seeds Made?
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Flowering Plants
sunflower,
tulips,
marigold,
lily,
jasmine,
rose,
lotus,
hibiscus,
Petunia,
daisy,
water lilies

Conifers
pine,
fir,
spruce,
evergreen
FLOWERING PLANTS
Female parts:
-- makes the eggs that
become seeds.
Male parts:
-- makes pollen, which is
the powdery material
that is needed by the
eggs to make seeds.
Eggs + Pollen = Seeds
FLOWERING PLANTS
Eggs + Pollen = Seeds
Wind
Insects (bees/birds)
Animals
Nectar = sugary liquid in flowers.
While the animals drink the nectar, pollen rubs off on their bodies. When they move to other
flowers, some of the pollen is transferred to female flower parts.
Life Cycle of a Flowering Plant
2.
A new plant grows.
1.
A seed might become a new plant.
3.
The plant is an adult.
4.
The plant flowers.
Insects, wind, or animals carry pollen to eggs.
5.
Flowers become
fruits with seeds.
Conifers
• Some plants do not have leaves; they
have needles or brushes.
• There are two kinds of
cones:
***small pollen cones
***large seed cones
Wind blows pollen
from small to large
cone.
Pollen + large cone = Seed
Pollen + large Conifer Cone =
Seed
• Seed grows inside a large cone.
• When seeds are ripe, they fall to the
ground.
• Each seed has the ability to germinate
and eventually grow into a tree.
Life Cycle of a Conifer
2.
A new tree grows.
1.
Ripe seeds from a large
cone germinate in the soil.
3.
It makes two kinds of cones..
4.
Pollen from the small cone
falls on the larger cone.
5.
This larger cone grows with seeds
Inside. Ripe seeds fall to the ground.
What Other Ways Do Plants
Reproduce?
• Seeds
• Cuttings: pieces of the plant that was cut
off from the original. When placed in
water, new roots will grow. (i.e., perennials
such as salvias, geraniums, asters and
dianthus, as well as roses, heathers,
hydrangeas and more)
What Other Ways Do Plants
Reproduce?
• Bulb: an underground stem
(i.e., onion)
• Tuber:
an
underground stem (i.e., potato)
What Other Ways Do Plants
Reproduce?
• Spores: not as tough as seeds and does
not have a food supply but if it gets light,
water, and nutrients, it can grow into a new
plant. (i.e., mosses and ferns)