The solar system formed from the a. grouping together of asteroids. b. collapse of an interstellar cloud. c. collision of two massive stars. d. explosion of an interstellar sun.

Free brainliest! what is a characteistic of the american stradfordshire?

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?

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.