32. Ecosystems will have a greater chance of being stable over a long period of time if they have A. organisms imported by humans from other environments B. a sudden change in climate C. a diversity of organisms D. predators eliminated from the food chains 33. Which of the following is NOT a way that humans can protect biodiversity? A. Developing state parks B. Buying products that aren't sustainably sourced (palm oil, coffee, chocolate, etc...) C. Legally protecting endangered species to preserve biodiversity D. Regulating hunting and fishing 34. A wooded area has been divided by a housing development and is threatening the biodiversity of the area. What term is used to describe this threat from human activities? A. habitat fragmentation B. acid precipitation C. habitat augmentation D. global warming 35. Which of the following is NOT a characteristic of an invasive species? A. They grow rapidly and outcompete with other plants or animals B. They produce large numbers of seeds/offspring at a young age C. They have very specific needs or requirements to survive 36. Which of the following was NOT a cascade effect from introducing wolves into Yellowstone? A. The change in the shape/path of the river R The change in elk grazing areas

25. Why is blodiversity importantr Blodiwardty A. Disease resistant plants in wild B. Plants provide oxygen, natural processes clean water C. Beauty and scientific value D. All of the above 24. What happens to biodiversity as you go further away from the equator? A. Increases B. Decreases C. Stays the same 25. When talking about biodiversity, the term "hotspots" refers to areas that have a lot of A. pollution B. global warming C. endemic species D. endangered species 26. A biologist is searching for a new plant-based antibiotic. In which of the following types of ecosystems would the biologist have the best chance of finding new kinds of plants to use in her research (which is the most biodiverse area of the options below)? A. highland desert B. temperate deciduous forest C. polar tundra D. tropical rainforest 27. The wetland plant purple loosestrife was imported to North America from Europe. Since its introduction, the loosestrife has spread, which has resulted in a dramatic decline…

The biggest impacts are made on the environment by: * A. The migration of organisms B. Predation C. Human interference D. Competition

4. All of the following organisms in a marine food web, close to the Arctic Circle, would properly be classified as heterotrophic animals, with the exception of: A. the harp seal (a quaternary consumer species) B. the polar bear (a quinary consumer species) C. the squid (a secondary consumer species) D. the flatfish (a tertiary consumer species) E. phytoplankton (a producer species)

Sunlight drives the production of terrestrial grasses along the bank of a tropical river. Hippo consume the grass and then defecate in the river which fertilizes aquatic plants. This assemblage is best referred to as a… a. population b. trophic cascade c. commensalism d. ecosystem e. community

Primary Succession... A. is very uncommon B. must happen before secondary succession C. depends on forest fire

It is living components in an environment and may include food sources and other populations. A) Biotic factors B) Competition C) Community D) Population

When substances are not broken down in metabolism but stored and passed on to higher trophic levels which of the following processes occurs? Group of answer choices a. Predation b. Coevolution c. Ecological Succession d. Biological Magnification e. Competition

At any point in time, a number of environmental objectives must be met with a limited amount of economic resources. This means that once an environmental problem is identified, they have to be prioritized. In general, this is done using scientific valuation of the relative risk to human health and the ecology of a given environmental hazard - a procedure known as: A. Biodiversity B. Public Goods C. Risk Assessment D. Profit maximization

The process of certain elements through different trophic levels is also called    A. food chain  B. biodiversity C. biogeochemical cycling