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Germination in seeds follows dispersal and a period of dormancy - Leaving Cert Biology - Question c - 2021
Question c
Germination in seeds follows dispersal and a period of dormancy. (i) Explain each of the underlined terms. (ii) Outline how dormancy in seeds benefits plant specie... show full transcript
Worked Solution & Example Answer:Germination in seeds follows dispersal and a period of dormancy - Leaving Cert Biology - Question c - 2021
Step 1
Explain each of the underlined terms.
Answer
Germination: This refers to the growth of a seed (or embryo) into a new plant or named parts of the plant. It marks the transition from a dormant state to active growth.
Dispersal: This is the act of carrying or scattering seeds away from the parent plant. This process helps in reducing competition among seedlings and allows plants to colonize new areas.
Dormancy: This describes a period of low metabolic activity or inactivity in seeds. During dormancy, seeds do not germinate, even under favorable conditions, effectively allowing them to wait for the right environment to grow.
Step 2
Outline how dormancy in seeds benefits plant species.
Answer
Dormancy serves several critical functions in the survival of plant species. It allows seeds to germinate only when conditions are suitable, helping to ensure the survival of the species. This can lead to greater dispersal, preventing overcrowding by allowing the seeds to wait for optimal conditions, such as appropriate moisture, temperature, and nutrient availability, which enhances the chances of successful growth.
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