an apple seed
mango is the best example of a seed plant.
One example of a seed that contains burrs is the burdock seed. Burdock plants produce burrs that easily attach to fur or clothing, helping in seed dispersal.
apple
An example of a seed that has liquid endosperm would be a coconut. While it does contain cellular endosperm, the coconut milk would be considered liquid endosperm.
The two alleles used in the example for seed appearance are R (round) and r (wrinkled).
ferns for example
No! Lycopsids categorize to the plants without seed. Tomato have seed.
Many fruits only have one seed. A peach is a good example of this.
The aril is an edible part that is attached to the seed, and is readily eaten by others. It's the edible part that has attached and grown on a seed. An example of an aril is a pomegranate seed.
Primary consumer
string beans
When acid rain, for example, rains down and it hits a germinating seed, the seed will deteriorate almost immediate. The less acid the better for the seed.