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Which one of the following has the largest population in a food chain?
(a) Producers
(b) Primary consumers
(c) Secondary consumers
(d) Decomposers
Step by step
Solved in 2 steps
- 1.) Which of the food chains below fit the food web in the diagram? a). Grass - cow - man - decomposers b). decomposers - grains - pig - man c). Man- chicken - grains d). Grass - decomposers - grains 2.) Which organism has the greatest amount of energy? 3.) Which has the least amount of energy? 4.) Which in the least is/are indispensable in the cycling of materials? 5.) Which in the list is/are not important in the cycling of materials? 6.) Which item (s) in the list would be the cheapest yet the best source of nutritional needs in poor countries?a) Describe the relative numbers of producers, primary consumers, secondary consumers, and tertiary consumers expected in an ecosystem based on the food chain depicted below. b) Describe the shape that this pyramid of numbers would take. algae insect larvae yellow perch northern pike human c) If you were to include decomposers in the food chain above, where would you place them? Explain your answer.Secondary producers are(a) Herbivores(b) Producers(c) Carnivores(d) None of the above
- What is the difference between a primary consumer and a secondary consumer?Which of the following represents how nitrogen will move through the food chain? * O secondary consumer-> producers-> primary consumers producers-> primary consumers-> secondary consumers O tertiary consumers--> secondary consumers-> primary consumers-> producers O producers-> secondary consumers-> tertiary consumers“The pyramid of energy is always upright” states that A)The energy conversion efficiency of herbivores is better than carnivores. B)The energy conversion efficiency of carnivores is better than herbivores C)Producers have the lowest energy conversion efficiency D)Energy conversion efficiency is the same in all trophic levels
- Which of the following is true about global food production? A. If we continue growing crops for biofuel production and agricultural feed, we will be able to feed billions more people. B. If we eliminated the production of grain-fed animals and maintained current yield and cropland, it is predicted that we could feed an additional 4,000 million people. C. Although poverty is linked to hunger, food production is the major cause of hunger. D. To increase food production, the only option is to increase the yield per area farmed.What is the difference between the concepts of food chain and food web?What is a food chain? How does a food chain differ from a food web?
- In a simple food chain, a frog eats insects, and a snake eats the frog. The primary role of the frog in the food chain is _____________________. a) to be a source of energy b) to find a space to live c) to start a new species d) to make an ecosystemThe following diagram shows a typical food pyramid: Hawks Snakes Mice Grass If 100,000 kJ of energy is available to the producers, how much energy is available to the secondary consumers in this food pyramid? 1,000 kJ 10,000 kJ 100 kJ 10 kJ4) In the graphical representation of energy flow, generally the base is made up of the __________, which have the highest energy flow, while at the top we have the __________ that have a minimum energy flow. A) top consumers, producersB) Producers, decomposersC) Producers, superior consumersD) Decomposes producers, producers