Marie has a mass of 40 kg and exerts a force of 30 N on Earth. In space, she exerts little force, but her mass of 40 kg would not change. Which reason best explains why Marie’s mass would not change in space? *

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b. passive c. facilitated d. active b. passive

Which factors changed throughout the mice experiment