Answer Happy

D Question 5 0.5 pts Why are pollutants like DDT found at toxic levels in pelicans, but not the organisms lower than them on the food chain? Overexploitation O Biomagnification They are invasive species and the fish they consume are not their native prey O Climate Change Question 6 0.5 pts At the moment, the human footprint is than the biocapacity of the earth. O Less than Greater than Equal to
We should conserve as much biodiversity as possible because O All of the above are true statements. We may need to crossbreed our current crops with related ancestral species that are more disease resistant We could be losing potential medicines. o We can never fully predict the impact of removing a species from its food web. Question 4 0.5 pts In an attempt to control aphids that are destroying his plums, a farmer in lowa imports a colony of Asian ladybugs that feast on the aphids. The Asian ladybugs are not eaten by the local bird populations. The Asian ladybug population multiplies quickly, displaces the local ladybugs, eliminates the aphids, and begins to eat other local insects. The Asian ladybug O is critically endagered O is being overexploited. O is responsible for habitat fragmentation in the plum orchard. o qualifies as an invasive species O is increasing the biodiversity of the orchard.
Biodiversity refers to a diversity of species. O a diversity of ecosystems. O a diversity of genes. all of the above. > Question 2 0.5 pts California has a unique geography and a diversity of ecosystems that supports a wide range of endemic plant life. For this reason, California is what? The breadbasket of the world A biodiversity hotspot A tropical rainforest On the forefront of climate change 10