IMMEDIATE HELP PLS
Match the terms relating to eukaryotic messenger procssing.
codes for amino acid
sequence

-intron
cap or special G added this
end
-exon
poly A tail
-5'end
-3' end
removed from eukaryotic
mRNA

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

i believe the answer is snake.