Which of the following diseases is not associated with coronavirus infections?
middle east respiratory syndrome
german measles
the common cold
severe acute respiratory syndrome

Which blood cell spend most of their time in the lymphatic system?

Why are human population trends difficult to predict?

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.