Question

Walnut trees produce edible seeds with a hard outer covering. Maple trees produce seeds with wing-like edges. What type of seed dispersal applies to each type of tree?

Answer 1

can someone please help me

Answer 2

@april115

Answer 3

http://en.wikipedia.org/wiki/Seed_dispersal#Types_of_dispersal
Think about it. A seed which is edible but with a hard coating (to protect from stomach acids when eaten) is reliant on zoochory, or dispersion by animals. Birds and mammals will ingest the seed, which is called endozoochory.
On the other hand, a seed with wing-like edges seems rather aerodynamic, does it not? These seeds most likely rely on the wind for dispersal, i.e. anemochory. The "wing"s allow the seeds to travel greater distances in the air.

Answer 4

Seems like the maple tree seeds are shaped that way so they can go further away from the tree to creat a new tree. The walnut tree seeds are shaped so that they fall straight to the ground. Since they are edible, they rely on wind or animals to pick them up and move them to a new location so new trees can be created. Is that what you needed?

Answer 5

thanks