Which of the following statements is true? a. the industrial revolution negatively impacted agriculture. b. the world's food supply is slowly decreasing. c. hybrid plants are always better than the plants they are bred from. d. the world's production of food is unequally distributed.

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

Explain how scientists use geologic time to determine the age of landforms.

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of