How can the mechanical advantage of a lever be increased?

a) by applying a larger force
b) by making the lever shorter
c) by applying the force farther from the fulcrum
d) by moving the fulcrum away from the load

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.

Which of these reproductive method is the only on available to mosses and fernsspores