The 1. is the gene, 2. - dna and the last one is the rna :)
Answer:
A concentration gradient must exist.
Explanation:
Answer:
The geosphere affects the atmosphere as soil provides nutrients to plants that then release water vapor into the atmosphere. Furthermore, how do the spheres interact? The 4 spheres are: lithosphere (land), hydrosphere (water), atmosphere (air) and biosphere (living things). All the spheres interact with other spheres. River action erodes banks (lithosphere) and uproots plants (biosphere) on the riverbanks.
Explanation: