Question

why do some Hard seeds need to go through the digestive system before they can start germinating​

Answer 1

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๛Endozoochory has been suggested as an important mechanism for long-distance plant dispersal that facilitates seed arrival to new and more favorable habitats. The hardness (mechanical strength) and thickness of the seed coat are important characteristics for seed survival and germination after passage through an herbivore gut.

๛When a seed passes through the gut of an animal it undergoes a process called scarification which is the process of weakening the seed coat so that the embryo can emerge.

๛An example of a plant whose seeds need to be scarified in order to germinate is the red bud tree.

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Answer 2

Answer:

All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate. When a seed is exposed to the proper conditions, water and oxygen are taken in through the seed coat.

Explanation: