Answer:
An organism that can provide itself with natural and nutritional substances from non-natural substances.
Example ↓
The potted plant in that window across the street.
Plankton.
Bacteria.
Answer:
1. Air warms, becomes less dense, it rises
2. Air cools down, increases density (becomes denser), it sinks
Answer:
A double helix shape of DNA
Explanation:
<span>The complete question includes these choices: a. vitamin B6
b. calcium
c. water
d. protein The correct answer is c. water. Water has a peculiar chemical structure, with special and unique properties that are crucial for chemical reactions (eg good dissolving properties, resistance to pressure and fluidity throughout changes of state).</span>
