True... examples: the spine helps you stay up right which would help for structure and the skull help protect the brain which would be protection
Hot temperatures, natural disasters, agriculture, urbanization, etc.
Mark me as brainliesttttt !!
<span>DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.</span>
Double fertilizer in a plant
He used a simple microscope
