2. Why
Variation?
I think there is variation in all
living things because without it
we would all be the same and we
would all be competing for the
same resources but then again
there is no food chain so we
would all be eating each other.
Because seriously who would
want to eat Tyler P? ha ha ha just
kidding! But then again you
wouldn’t know it was Tyler P.
3. Variation in
Plants
There are about 400,000
different kinds of plants on our
planet. Most variety are in warm
climates closer to the equator.
This is because plants need light,
warmth and water to survive, this
is plentiful by the equator. Plants
reproduce in both sexual and
asexual ways.
4. Sexual reproducing in
Flowers
The photo to the left is a
cross section of a sexually
reproducing flower. The
stamen is the male part of the
flower, it houses the pollen
which is transfered to the
stigmas of the same flower or
a different one by pollinating
animals and insects. The
stigma, ovary and ovule are
the female parts of the flower.
The seeds are made in the
ovule after being fertilized by
the pollen.
5. Sexual Reproduction in
Animals
During sexual reproduction in
animals, a male sperm fertilizes a
female egg. Once the egg is
fertilized it is called a zygote. The
cells within the zygote
multiply(cleavage) until there are
enough to make a fetus.
6. Asexual reproducing
Plants
The kinds of asexual
reproduction in plants
are budding, spore
production, binary
fusion.
7. Budding
Budding is like the photo in this slide.
When a plant buds, a small copy of the
parent plant grows on a part of the
original plant until it gets big enough and
the original plant dies it puts down roots.
This is very affective because when the
parent plant dies, the nutrients from the
rotting material feeds the new plants.
Budding in animals is when a single
celled or some small multi-celled
organisms create a small copy of
themselves and it soon detaches from the
parent. An example of a budding
organism would be yeast, coral or “hens
and chicks”.
8. Spore
Production
Spores are usually in non-flowering
plants, fungi and some moulds.
Spores are similar to seeds but they
are a small copy of the parent. They
develop into a copy of the parenting
plant.
9. Binary
Fusion
Binary Fusion is when a plant or
small animal makes an exact copy of
itself. A example of this would be
when a bacteria splits and multiplies.
This is good for keeping everything
similar and since it is asexual there is
no risk of inbreeding.
10. Vegetative
Reproduction
Vegetative reproduction is when a
living piece of a parenting plant
becomes separated from the original
plant and grows roots and starts a
new copy of the original plant. I
think this is a hard thing to do in the
wild without human help except for
the tree aspen, which produces
suckers which are easily transfered
and grow easily without human help.
