In my opinion, chloroplasts and mitochondria can't live outside the cell now because mitochondria ensure the energy for the cell and the chloroplasts is important for photosynthesis. Just my opinion.
I'd say create a compost bin. Hopefully this was what you were looking for.
<span>Mature tRNA has an amino acid binding site at one end and the other end interacts with the mRNA by complementary base pairing due to the presence of an anticodon. An anticodon is a three nucleotide sequence which is complementary to the triplet codon of mRNA which specifies a protein for synthesis.</span>
The answer that best fits the blank provided above is C3a and C5a. Mast cells release this so called histamines once they are exposed to C3a and C5a which are fragments of complement proteins. These are also called as <span>Anaphylatoxins along with C4a. Hope this helps.</span>