Please trace a timeline (this means using dates) from the start of the earth’s formation to 542 million years ago. Making sure to note the earliest life forms and their oxygen status( aerobic vs anerobic ). Explain which came first cell respiration or photosynthesis and explain your answer based on prokaryotic vs eukaryotic organisms​

Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation. c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation. d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen