Carbon monoxide blocks the ability of the blood to oxygenate the body because it: select one: a. causes the body to expel too much carbon dioxide. b. destroys the number of circulating red blood cells. c. fills the alveoli in the lungs with thick secretions. d. binds with the hemoglobin in red blood cells.

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.