When the temperature rises some materials experience thermal expansion which means they get bigger, so it may make them harder to close because they don't fit as well.
the cell theory states that all new cells come from other living cells, and it's true for both multicellular as well as unicellular organisms.unicellular organisms reproduce through asexual reproduction,There are different types of reproduction like binary fission, vegetative, budding, fragmentation etc reproduction in unicellular organisms, through that they directly divide into new similar cells.
whiltin multicellular organisms, reproduction takes place through sexual reproduction, where male and female gametes are formed in separate reproductive organs and get transferred to form an embryo.
so in nut cell in unicellular organisms there is no specific organs,that is responsible for reproduction, while in multicellular there coplex reproductive system
Microwave is Electromagnetic, as is radio wave, ocean is mechanical, s is seismic. <span>A mechanical wave requires an initial energy input. Once this initial energy is added, the wave travels through the medium until all its energy is transferred. In contrast, electromagnetic waves require no medium, but can still travel through one. </span>Electromagnetic waves or EM waves are waves that are created as a result
of vibrations between an electric field and a magnetic field. In other
words, EM waves are composed of oscillating magnetic and electric
fields.
Answer:
Explanation:having or representing the sun as the center, as in the accepted astronomical model of the solar system.