<span>Protein</span>
<span>Cilia and flagella are made up of microtubules covered by
plasma membrane and they projection from the cell. Thus, cilia are flagella are
motile and designed to move substances over or around the cell and they can as
well move the cell itself. In eukaryotes, they are conserved in their polypeptide
composition, structure and function as motile and sensory organelles.</span>
C- Single-celled organisms and soft, boneless animals.
<span>A biogenic sediment that forms from the accumulation of plant debris is known as "Limestone"
Hope this helps!</span>
Adjacent cells can signal others by direct contact, while nearby cells that are not touching can communicate by the release paracrine signals.
Hope this helps,
Davinia.
The answer is A
Hope this helped
