Crystal structure............... .........
Bat wings are made of a rubbery substance while eagles wings are covered in feathers
Environmental functions is the correct option. Hope it helped U. If it helped you please mark as brainliest
Answer:
a) snRNA
Explanation:
The association of small nuclear RNA (snRNA) and some specific proteins forms small nuclear ribonucleoprotein complexes. Some complexes are spliceosomes, molecular machines -made up of a snRNA and about 80 proteins- that remove introns from pre-mRNAs via successive phosphoryl transfer reactions.