Changes in the trilobite exoskeleton can be attributed to a. changing environments c. inter-species mating b. competition for survival d. both a and b

What is the momentum of a 2 kg object moving at 15 meters per second

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

Which bonds are found inside a water molecule