Active transport requires energy when moving molecules against a concentration agent. It requires for specific membrane transport proteins. Only a certain type of protein can move a certain type of substance.
The three main types of Active Transport are:
1) Sodium-Potassium Pump
2) Endocytosis
<span>3) Exocytosis </span>
Answer:
19. B a force continues to be applied to the object.
20. B massive force.
21. B inertia
22. C unbalanced force.
23. C friction
24. A balanced
25. C an outside force acts on it
26. B an equal and opposite reaction
27. A No, they are traveling in different directions.
28. A No, because the direction is different
29. A force
30. D Gravity
The opposite of evaporation is condensation.
during an experiment you make observations to test the hypothesis and prediction
