semínky

Semínky, also known as seeds, are the reproductive units of flowering plants. They are typically small, hard, and often covered in a protective coat called the seed coat. Seeds are produced within the ovary of a flower after fertilization, which occurs when pollen from a male flower fertilizes the female flower's ovule. The fertilized ovule develops into a seed, which contains an embryo and a food supply for the embryo's growth.

Seeds can be dispersed in various ways, including by wind, water, animals, or even human activities. This dispersal helps to ensure the survival and propagation of plant species. Once dispersed, seeds can remain dormant until they encounter suitable conditions for germination, such as water, warmth, and light.

The structure of a seed varies among different plant species. Generally, a seed consists of the following parts:

1. Seed coat: The outer protective layer that shields the seed from environmental damage and pathogens.

2. Embryo: The developing plant contained within the seed, consisting of the root, stem, and leaves.

3. Endosperm: A nutrient-rich tissue that provides food for the embryo during germination.

Seeds play a crucial role in the life cycle of plants and are essential for their reproduction and survival. They are found in a wide range of plant species, from annual flowers to trees, and are a vital component of ecosystems worldwide.