Which of the following correctly describes the size of the milky way galaxy?
a.
the milky way galaxy is smaller than most galaxies.
b.
the milky way galaxy is the largest known galaxy.
c.
the milky way galaxy is larger than most galaxies.
d.
the milky way galaxy is the smallest known galaxy.

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

What class of levers is shown in this image?