An animal leaves its footprint in wet mud, and later, when the mud dries, the footprint can be filled with plaster. When the plaster hardens, it has the same shape as the foot of the animal. The plaster cast could then be used to make new footprints in soft mud identical to those made by the animal. The process of using the plaster cast to make new footprints most accurately models – a. translation of mRNA codons to form a protein.
b. transcription of mRNA from the original DNA code.
c. insertion of nucleotides into the mRNA codons
d. deletion of nucleotides from the tRNA anticodons.

what bodys are there orbiting?

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.

not sure what it is