Answer: Option D) All living things are made up of cells
Explanation:
The cell theory states that:
- the cell is the structural and functional unit of life
- all living organisms are made of cells
- all cells come from previously existing cells
- there is no life apart from the life of cells
- all living things are either single cells (unicellular) or group of cells (multicellular)
Answer: Blood Vessels and Heart
Explanation:
If you wanna get into the nitty-gritty, The circulatory system is also made up of arteries, veins and capillaries.
A an increase in global warming
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