Weight Watchers Week 1 Weigh In and my Take on the Free Fruit. Week 1 on the new Weight Watchers PointsPlus is a success! Iâm down 3.6 lbs! I feel fantastic and Iâve been doing great but I havenât yet found my groove with the plan. Let me explain while answering the questions Dana left of my recent Do You Nibble postâ¦.
1 Tropical rainforests have the most diversity. 2  The most diverse group of animals are invertebrates. 3  Invertebrates are animals without backbones, including insects, crustaceans, sponges, scorpions and many other kinds of organisms.
Diversity: Ecosystem Diversity. At left: An open space caused by a blow-down of trees in the Hoh Rain Forest, Washington. Photo: Ed Shay. Three Levels of Biodiversity In his book Ancient Forests of the Pacific Northwest, Elliott Norse identifies three levels of biological diversity. 1) There is species diversity, the kind that we are most familiar with.