How does the skin protect the body against illness? Select two options. The skin produces sweat and oil.
The skin acts as a barrier.
The skin identifies and coordinates an immune response.
The skin produces mucus.
The skin causes the body to produce antibodies.

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Environmental impacts on evolution : mastery test

In the desert, saguaro cacti, owls, horned lizards, and fire ants all share the same space. which of the following can be considered a population? question 9 options: all plants in the same area all cacti in the same area all species in the same area the lizards and the ants