3/15/2018 Take Test lest 3-2975Spring 20180-15 QUESTION 16 2 points Save Anawer

Question

3/15/2018 Take Test lest 3-2975Spring 20180-15 QUESTION 16 2 points Save Anawer Which of the following is FALSE about cover crops? helps return the nutrient carbon to the soil typically includes alfalfa and clover helps reduce soil erosion by continually covering the field can often double the crops harvested on that area QUESTION 17 2 points Save Answer Which is FALSE about aquaculture? includes growing aquatic species confined in pens or nets O, two thirds of wild fish are caught to feed these fish farm species may release feces, antibiotics and pollutants into surrounding waters may be built near ocean shores or freshwater areas QUESTION 18 2 points Save Answer What do Foxglove, Mexican Yam and Periwinkle have in common? They all grow naturally in the northern hemisphere forests O have been used for medicine for over 100 years. have exciting possibilities for use as human food are wild species providing us with important medionos. 2 points Save Answer QUESTION 19 The goal of the Endangered Species Act is to protect all species in danger of extinction. broad categories of ecosystems key species which are important for normal ecosystem function species providing uses important to humans, especialy as food sources 2 points Save Answer QUESTION 20 Cliek Save and Submit to save and submit. Click Suve All Ansvers to save all answers

Explanation / Answer

16. As the cover crop is mainly for the protection and enrichment of the soil, the answer for this will be can often double the crops harvested on that area.

17. The fish conversion rate (FCR) of wild species to feed aquaculture was estimated at 3.44 kg of wild species for producing 1 kg of aquaculture species, while in 2009 it has been reduced to 0.26. Hence the answer for this question is two thirds of the wild fish are caught to feed these fish farm speices.

18. Foxglove, Mexican Yam, and Periwinkle are known to be wild species providing us with important medicines.

19. The Endangered Species Act was signed on December 28, 1973 to provide conservation for the endangered species. Hence the answer is all species in danger of extinction.

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