1. A group of closely related organisms capable of interbreeding to produce fertile offspring are known as members of a ___.
2. A beaker of pond water containing few specimens of Euglena was placed in a dark room for two weeks. At the end of this period, the specimens of Euglena were still alive because they were
A. able to carry out holozoic nutrition
B. able to carry out photosynthesis using carbon dioxide in the pond water