The cell and controls what enters and leaves the cell a) cell wall b) lysosomes c)cell membrane d)vacuole

Which of the following substances is not involved in the chemical reaction that pro- duces smog? a. sunlight b. particulate matter c. automotive exhaust d. ozone

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a. doing door-to-door sellingb. using billboards to advertise the productsc. making online shopping services availabled. giving discounts on products

Plants that have reproductive structures called cones are?