Which of these is purposefully changed during a scientific investigation? (4 points) a
Test variable (independent variable)

b
Outcome variable (dependent variable)

c
Control group

d
Hypothesis

The use of dna as evidence in criminal investigations became possible because of the

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

Which entry is in the wrong position in the table?