Astudent is working on a lab where they are trying to identify an unknown substance. the student decides to smell the solution by taking a big breath over the test tube. they immediately start to cough and their lungs are burning.

As a small change in a person's dna can cause a genetic disorder

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

What methods do scientists use to predict volcanic eruptions? select all that apply