observe the cartoon on the next page. Identify each simple machine represented in the machine. your choices will be:lever, inclined plane, pulley, wedge, screw,,wheel and axel, and pendulum.(not really a simple machine, but will be ok in this worksheet)

Specialized cells which perform a particular function form : organisms organs tissues

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?