The first line of defense involves which structure(s)?
T-cells
skin
blood
B-cells

Read the prompt and study the diagram above. what cause and effect prediction can be used to test the assumptions in the model? a) limiting water will limit sugar production of the plant b) limiting sunlight will limit sugar production of the plant c) limiting carbon dioxide will limit sugar production of the plant d) limiting sunlight, water, or carbon dioxide will limit sugar production of the plant