Answer:
256.
Explanation:
If a bacterium divides once in every half an hour, it means it will double in half an hour. Hence a number of the bacterium after half an hour will be 1×2=2. After one hour the number of bacterium will be 2×2=4. Similarly, it one and a half hours it will be 4×2=8. In two hours it will be 8×2=16 in two and half hours, it will be 16×2=32. In three hours it will be 32×2=64. In three and half hours it will be 64×2=128. Hence, in 4 (four) hours the number of bacterium will be 128×2=256.
Answer:
Osmosis is the diffusion of water through a cell membrane
Answer: C
Explanation:
Does not build hydrophobic bonds with oil because it is hydrophilic.
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Answer:The volume of the stacks is the total space occupied by the disks
Explanation:
Answer:
The inflated balloon
Explanation: the balloon has more mass because it takes more area, the marbles may have more weight but the balloon takes more area