Pesticide use can lead to ecological imbalances. Explain what happens and how this can occur. What biological principles explain this side effect of pesticide use? Explain your answer.

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking

Which tip applies to the aspire test and psat equally

Which is the best investment option for a person who wants to make a long-term,tax-free investment? a.traditional ira b.roth ira c.401(k) d.money market account