C) Cell wall Explanation: Plant cells have a rigid cell wall outside the cell membrane for support; animal cells do not.
Two identical bar magnets are placed on a table. When the north pole of magnet X is brought near magnet Y, magnet Y moves away.
(a) Transpiration. (b) Presence of sunlight / open stomata / water in the soil. psle 2012 science questions and answers
(a) How does the thick stem help the cactus survive? (b) Why are there spines instead of broad leaves?
A steel rod is placed near a magnet but does not move. When the rod is stroked 20 times with the same pole of the magnet, it can now attract paper clips. C) Cell wall Explanation: Plant cells have a
(a) What happens to some of the energy after the ball hits the ground? (b) Name the main type of energy the ball has just before it hits the ground.
(a) Evaporation. (b) Increase temperature / blow air over the surface. (a) Transpiration
(a) In which circuit will the bulb be brighter? (b) Explain your answer.