C. Ice is less dense than water which means water condenses when it freezes allowing the ice in a lake to float on top of the water preventing the water below from freezing.
Erosion of sand n dirt and it ca cause sinkholes
Answer: The correct answer is macrophages
Explanation:
Macrophages are examples of phagocytes, and they engulfs pathogens (disease-causing organisms such as viruses, bacteria) by pulling them into their vacuoles and digesting them completely.
Macrophages, and Other like T-cells, B lymphocytes and natural killer cells all help in the BODY DEFENCE. But unlike macrophage, others exert their function through a different mechanism.