Viruses aren’t normally considered organisms
The cytoplasm in a single-celled organism and the circulatory system in a human both transport substances throughout the organism
Here’s what I found on quizlet
The bond formed between the sugar of one nucleotide and the phosphate of an adjacent nucleotide is a covalent bond. A covalent bond is the sharing of electrons between atoms. A covalent bond is stronger than a hydrogen bond (hydrogen bonds hold pairs of nucleotides together on opposite strands in DNA).
E.climax, because the climax community is composed of species best adapted to average conditions in that area.