31. Plants that flower in response to photoperiod may have a facultative or obligate response. 32. Similarly, green plants in opportunistically as facultative root parasites of neighboring green plants. 33. In Dresden, he founded the group The Urn : Association for Facultative Cremation. 34. There are two main types of air breathing fish facultative and non-facultative. 35. There are two main types of air breathing fish facultative and non-facultative . 36. It is a facultative parasite of nematode eggs. 37. It utilises thiocyanate and is a facultative chemolithotroph. 38. They vastly outnumber facultative anaerobic and aerobic bacteria. 39. Property facultative followed, beginning in 1956. 40. However, when no male anacondas are available to provide offspring facultative parthenogenesis is possible.
