Answer:
Cells cannot survive on their own. They need power to stay alive. They need energy to perform functions such as growth, maintaining balance, repair, reproduction, movement and defense. This means all living organisms must obtain and use energy to live.
Explanation:
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The immune system. It produces antibodies which fight the bacteria or virus that caused the infection
Answer: B. Lungs
Explanation:
The lungs are the only organ in the body that can float on water.
Answer:
Different acids make different salts.
Explanation:
a hydrochloric acid
b sulphuric acid
c nitric acid
