What is the structure shown in the figure? Nucleic Acids

Carbohydrates

Proteins

Lipids

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d