Answer:
Convection currents transfer heat from one place to another by mass motion of a fluid such as water, air or molten rock.
Explanation:
For the second one it’s B or C, I dunno if phototropism is a real word cuz all the rest are vital.
Answer: B. Rough strained and heat killed smooth strain kills mouse
Explanation:
Answer:
B. To make sure that the two new cells have slightly different genetic codes.
Explanation:
Answer:
B) Digestion is the process of breaking down food into smaller molecules.
Explanation: