A function of white blood cells is to *
O
transport oxygen to body cells
produce hormones that regulate cell communication
carry glucose to body cells
protect the body against pathogens
The immune system of humans may respond to chemicals on the surface

How does land development destroy ecosystems? it increases human carrying capacity too rapidly. it converts them into residential or agricultural areas. it forces humans to import non-native plants and animals. it expands the natural range of native wildlife species.

The model illustrates a process by which a substance is taken up by a cell

Which organism can most likely be classifild as domain bateria