An oxygen atom would be the smallest particle representing hydrogen peroxide.
hope that helps :)
They need energy to produce oxygen
Studies of populations that reveal correlations between dietary habits and disease incidence are epidemiological studies.
Answer:
Red blood cells, root hair cells in plants
Explanation:
Red blood cell: it has no nucleus. It offers the cell to carry more hemoglobin
Root hair cells in plants: they have a large cytoplasm which enables them to take water from the soil.
