Actin and myosin are proteins that allow muscles to A. make ATP.
B. communicate with other cells.
C. contract.
D. break down old cellular organelles.

50 points! which of the following is an inference? a burning candle is extinguished when it is covered with a jar. the candle burns longer than expected in a jar that has a plant in it. a plant lives longer than expected in a jar that has a burning candle. there is more oxygen in the jar because there is a plant in it.

Based on their relative positions in the periodic table, which two elements would have the same number of valence electrons?

Below are the three main organs that make up the plant body