Seeds
It is seeds.
Seedling is one seed, it is the singular of the plural "Seeds"
Ah, the plural of "packet" is "packets." Just add an "s" to the end, like planting a seed and watching it grow into a beautiful garden of words. It's a simple and lovely transformation, much like adding a happy little tree to a painting to bring it to life.
the seed coat
The word is spelled seeds, just as you spelled it. Variants are: seed (singular) seeds (plural) seeding seedling (a plant) Another word that sounds alike is cede, or cedes, which means "to yield to" or "to grant".
The plural of 'this' is 'these' and the plural of 'that' is 'those'.
Isthmi is plural. There are actually two plural forms. I will list them from singular to plural. Isthmus - Singular Isthmi - Plural Isthmuses - Plural
The possessive noun for the singular word canary is canary's, e.g. "The canary's seed dish".The possessive plural form for many canaries would be canaries', e.g. "The canaries' seed dishes".
seed made of tree
Grape seed is the whole seed and grape seed extract is part of the seed which has been extracted from the whole.
The plural of rose is roses. The plural possessive is roses'.
The plural of 'bunch' is bunches.The plural of 'ant' is ants.The plural of 'batch' is batches.The plural of 'day' is days.The plural of 'chimney' is chimneys.The plural of 'tomato' is tomatoes.The plural of 'umbrella' is umbrellas.The plural of 'donkey' is donkeys.The plural of 'sky' is skies.The plural of 'foot' is feet.The plural of 'show' is shows.