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

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.

What is the difference between a scientific hypotheses and a scientific theory?