Answer:
it is a producer. it produces its own food using photosynthesis
<span>The phase of mitosis during which the mitotic spindle begins to form is
PROPHASE.
</span>At prophase, the nuclear envelope is broken down; the chromosomes disperse into the cytoplasm, condenses and become visible;
and more importantly, the mitotic spindle fibers form.
R-group is the most important group in amino acids. Since amino acids in proteins are linked by peptide bonds, only the R-group is free. It is this group which defines the chemistry of proteins. Classification of amino acids is also based on R-groups.