Which of the following body systems work together to get cells the nutrients they need to carry out cellular respiration ?

a) the digestive and respiratory systems
b) the respiratory and circulatory systems
c)the digestive and circulatory systems
d) the circulatory and excretory systems

Name the two stages involved in protein synthesis and explain what occurs in each of the two stages. be sure to also indicate where each process takes place. plz don't give one sentence answers : d

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

What is the difference between how ionic and covalent bonds form