Completion Complete each sentence or statement 31. The number and variety of species on Earth is called 32. The illegal hunting and slaughter of African elephants for their ivory tusks is also known as 33. A(n) is any species that is essential to the health of an ecosystem. 34. A recreational experience among life form and ecosystem is called 35. Any species with a declining population that could become endangered is a(n). 36. A plan designed to protect one or more species in a large tract of land is known as a(n) 37. A(n) is a segment of DNA that codes for a specific trait. 38. A(n) is any species likely to become extinct if it is not protected. 39. The is a treaty in preserve biodiversity that resulted from the Earth Summit in 1992. 40. A(n) provides storage for germ cells such as seeds or DNA of organisms that may become endangered. 41. The death of many species in relatively short time is known as 42. A(n) is an organism that is not native to a particular region. 43. A(n) is an organism that is critical to an ecosystem functioning. 44. The content of plant seeds us also known as 45. The kind of diversity represented by all the different genes found in a population is called 46. The sources of many antibiotics are in chemicals produced by 47. A crop produced by combining genetic materials is called 48. A population in which takes place may be prone to inherited diseases. 49. Fire ants in the southern United States are an example of a(n) 50. The passenger pigeon is an example of a bird that was once abundance in the United States but is now 51. The Florida partner is a(n) as a result of habitat destruction. 52. Honeycreepers found in the Hawaiian Islands are an example of a(n) 53. The Amazon rain forest is an example of a habitat with a high species variability known as a(n) 54. The application of biological sciences to create products such as drugs from plants or other organisms is known as 55. A{n) program is being used to help increase the population of California condors.​