Lina is late to science class and misses the very beginning of notes for the day. these are the notes that lina did copy down:

–found within galaxies
–have at least 1 star at the center
–have objects orbiting the star
–planets
–moons
–asteroids, comets, meteoroids, dwarf planets

lina later copied the title of the notes from a friend. what title did lina most likely copy?

the universe

galaxies

solar systems

milky way

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.