In: Biology
What are 5 advantages of a seed over a spore?
Larger size
A seed is larger than a spore. Seeds can be seen and touched easily, but it needs a microscope in order to see spores. We can't spores with your eyesight alone. A magnifying apparatus is used to see the spores, such as a microscope.
No necessity of Water
Water is not necessary for a seed to germinate & grow, although
some require water to soften the seed coat. Large seeds in dry
conditions will hold water and allow the growing plant to grow deep
roots without the need for rain or additional water. But, all
spores require water before the spore begins to grow. If the
conditions are not exact, the spore will not grow.
Self Nourishment
Every seed contains nourishment for the embryo inside it. The
endosperm is the tissue that surrounds the embryo inside the seed.
The embryo uses nourishment provided by the endosperm to start
grow. The spore, being a single-celled organism, does not have any
system to help a new plant or fungus begin the growth.
Seed Coat
The seed coat is a major advantage seeds over spores. A spore is a
single-celled organism that develops into a plant or fungus. The
spore has no outer protection. A seed is a multicelled organism
with an outer shell that protects the inside from damage,
dessication and other difficult conditions.
Developed Embryo
Inside every seed is a fully developed embryo that is ready to
grow. Most seeds go through a dormancy period, the period when the
seed will not germinate and begin to grow. At right conditions, the
embryo germinates and begins growing. Having an embryo already
grown gives a seed plant a better chance at survival as opposed to
a spore. The single cell of the spore must undergo a cell division
and specialization process before it can begin to grow.