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- To protect provided by biodiversity, it is important to take steps like setting aside land as Costa Rica has done. new construction developments lifestyle changes technological growth ecosystem services O agricultural accessAs related to ecosystem services which term is accurate match for direct service 1- the benefits humans receive from ecosystem processes 2- a product from the ecosystems biodiversity 3- the monetary value of a productEnvironments with fewer species seem to be more vulnerable to invasive species. Which of the reasons below explains this observation? OA. More biodiversity means it is less likely an invasive species will have the lowest R* value OB. More biodiversity means it is less likely an invasive species will have the highest R* value OC. Less biodiversity means more niche complementarity OD. More biodiversity means less facilitation
- Which of the following best describes bottom up control of an ecosystem? toxic compounds in mature leaves prevent herbivory by some consumers keystone predation of sea otters on sea urchins mesopredator consumption of small mammals parasitoids infesting a tomato hornwormWhich ecosystem has the least biodiversity? prairie cornfield coral reef rain forestWhen common garden spiders are present, insect diversity is much higher than when they are absent. Common garden spiders are most likely a ecosystem engineer dominant species keystone species
- Competition with other species helps determine an organisms (a) ecotone (b) fundamental niche (c) realized niche (d) limiting resource (e) ecosystemA conservation organization has hired you to lead efforts to reduce the loss of biodiversity in a tropical country. Which of the following problems would you focus on first and why: habitat destruction and fragmentation, hunting and fishing activity, harvesting of wild species for commercial sale, or introduction of exotic organisms?The ability to resist damage from disturbances and to reviver quickly is known as what after ecosystem displays ecological stability after an environmental disturbance
- which help stabilize a community? presence of keystone and dominant species high conectivity aming species in community large number of different species in community all tend to do destabilize community all help stabilize communityces Aquatic areas with high levels of biodiversity Complete the following paragraph to describe aquatic regions with significant levels of biodiversity that are threatened by humans. animal treshwater species 0.1 Only covering planet coral bleaching overharvesting introgen sponges takes coral reefs % of the world's surface, storms marine species medicines Unfortunately, these areas are under threat from climate change and runoff, and of the fishes that reside there. plant are the most diverse ecosystem on the In addition to their diversity, this ecosystem helps protect coastines from the effects of hurricanes. 1.0 Over 4,000 are believed to utilizes these regions, and members of every major phyla can be found in coral reefs. The organisms found there not only serve as food but increasingly are the sources of new to fight diseases and infections such as coastal pollution andWhich of these organisms do you think is a keystone species. Explain why 31 you think so. Tertiary Consumers: Secondary Consumers: Gulls and Terns Primary Consumers: Herbivores: Primary Producers: Your answer Chesapeake Bay Waterbird Food Web Osprey Wading Birds Small Planktivorous Fish Zooplankton Phytoplankton Large Piscivorous Fish Benthic Invertebrates Sea Ducks Bivalves Bald Eagle Herbivorous Ducks Submerged Aquatic Vegetation (SAV) Tundra Swan Vegetation Geese and Mute Swans