Functions of specialized algal cells: germ cells and zoospores – reproduction; rhizoids – attachment

air cavities keep plants afloat or in the upper layers of the reservoir, because plants need light for photosynthesis; oxygen source for breathing underwater.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.