Two different unicellular organisms are examined Scientists find that Species X always produces lactic acid during cellular respiration. Species Y always produces ethyl alcohol and carbon dioxide. Which conclusion can be made from these observations? a)Species X is anaerobic, and Species Y is aerobic
b)Species Y is anaerobic, and Species X is aerobic
c)Both Species X and Y are aerobic
d)Both species X and Y are anaerobic

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.