Hey, I need help with this, I'm on a timed assignment. I accidently clicked A btw
The pictures below show the forelimbs of six different organisms.

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?