Apatient who is recovering in hospital from a bilateral mastectomy has developed minor bleeding at one of her incision sites. during the process of clot formation, plasminogen will become part of a clot by which of the following means?
a) by binding with fibrin
b) by binding with platelets
c) by activating plasmin
d) by activating factor vii

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?