Answer:
C)
Explanation:
antigen binding to B cell receptors
The answer to this is Quaternary.
The nervous system in a frog controls the activities of the organs of the body. It also would regulate the internal environment in one's body. All the organs which are also the same parts of nervous system of a vertebrate are present in a frog. The brain,spinal chord,the sympathetic and para sympathetic nerves,cranial nerves,spinal nerves,cranial nuclei and ganglia.
Answer:
The conservation of “junk DNA” sequences in diverse genomes suggests that they have important functions.
Explanation:
Transposons move by means of a DNA intermediate, whereas retrotransposons move by means of an RNA intermediate.
