Which of the following sequences best illustrates primary succession in a forest? а
exposed rock – lichens - weeds - shrubs - hardwoods - stable forest
b
forest fire - pioneer species - Willow - hardwood
с
flood - mosses - ground cover - shrubs
d
bulldozed trees - shrubby weeds - cottonwoods - pine trees

Aperson who uses a computer at a desk does not have to worry about safety in the workplace. true or false

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.