How do natural disasters weaken a community’s social infrastructure?
a.
social systems are unbalanced by the damage caused by natural disasters.
b.
natural disasters tend to target the poorest members of a community.
c.
the number of natural disasters is increasing across the globe.
d.
natural disasters can cause billions of dollars in property damage.

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

No plagiarizing ! 6th grade work! easy and 100 compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.