Which two structures contain codons and anticodons?
mrna and trna
trna and amino acids
amino acids and mrna
rrna and trna

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.