Joann has an infection. choose the correct way to complete each sentence. in the chain ofjoann has a cold. she is coughing up mucus (a respiratory secretion) from her lungs. joann is thetransmission. the mucus from her cough is thein the chain of transmission.

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

How was the climate when the ambulocetus was alive

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.