What types of triangles have at least two acute angles?
1.right
2.obtuse
3.equilateral
4.isosceles

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.

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?