A little aside to the Q, but some Orchids have lots of tiny tiny seed, that will not germinate if left to itself. Fine like flour.
For there is no 'food supply' inside. These seeds rely on a fungi to invade the seed, and then they draw their nourishment from the fungi.
One genera (at least) the Gastrodia have taken this to the extreme, and remain parasitic on the fungi for their lifetime. I believe they cannot manufacture chlorophyll.
This interaction between orchid and fungi goes some way to explain the "plant associations" observed with orchids - the real association is of the fungi with its plant community, and the orchid follows on.
All a seed needs to make or obtain its own food is sun and water .Then the food is stored in the cotyledons until the plant needs it.
The seed leaves will drop off as it is useless alread
Mainly because there is no sunlight available in the ground and the seed has no chlorophyll to use the sunlight.
The seed leaves provide the seedling with food to grow before the appearance of leaves that enable the plant to make its own food.
9 days
You cannot make your own seed all the seeds are random not hand made
Autotrophs can make their own food.
I've never heard of a seed-eating bird... but if there is such a thing then yes, they would be a consumer.
The animal kingdom does not make it own food. There is really no animals that make food
Yes, Moneran does make it own food.
flatworms cannot make their own food.
No, zebras can't make their own food.