Which of the following is a characteristic of science? it asks questions about the natural world. it asks questions that cannot be tested. it is done by only one scientist at a time. it uses opinions to make conclusions.

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?

Explain the process that creates the heat of the sun?