A biological system is a complex network of biologically relevant entities. ... Examples of biological systems at the macro scale are populations of organisms. On the organ and tissue scale in mammals and other animals, examples include the circulatory system, the respiratory system, and the nervous system. source: google
Answer:
it is the third option: DNA reads the nucleotide sequences found in genes. Genes are located on tightly wound structures called chromosomes.
Explanation:
C.it changes DNA,but it is random
The cerebral cortex is the largest part of the brain. Located right under the forehead and it is divided into two parts a right and a left hemisphere.
Diffuse reflection would be the answer.
