Answered: A food chain consists of grass, sheep,… | bartleby

Aquaculture Science

Aquaculture Science

3rd Edition

ISBN:9781133558347

Author:Parker

Publisher:Parker

Chapter10: Feeds And Feeding

Section: Chapter Questions

Problem 21SA

See similar textbooks

Related questions

Question

A food chain consists of grass, sheep, and human populations. If 7000 kJ in
harvested grain is fed to the sheep, how much energy is available for the human
population?
A) 70 kJ
B) 7.0 kJ
C) 63 kJ
D) 0.70 kJ
E) 700 kJ

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

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?
The 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 kJ
An estimated 1000 kg of plant plankton are needed to produce 100 kg of animal plankton. The animal plankton is in turned consumed by 10 kg of fish, the amount needed by a person to gain 1 kg of body mass. i) explain why the amount of biomass declines at each successive trophic level.
If the primary producer trophic level contains 792kg of plant material, how many kg of biomass can be supported at the primary consumer or herbivore trophic level? 7.92 .792 792 79.2 O
A researcher measures the amount of mercury (a persistant toxic chemical) in the fish of a lake ecosystem. The concentration of mercury is 10 times higher in the tertiary consumer fish species compared to the amount in the primary consumer fish species. A) Explain this result using the term bioaccumulation and biomagnification. B) If a bear eats mainly the tertiary consumer fish from this lake, how would you expect the mercury concentration in the bear to compare to the fish?
1) A scientist finds that the gross primary productivity of the grasslands of the central United States is 55 g / m2 / year. If the respiration loss is 33 g / m2 / year, what is the net primary productivity? a) subtraction from gross productivity and respiration.b) The same as primary productivity.c) The value of respiration.d) The sum of gross primary productivity and respiration.
Which of the following is an environmental factor that leads to food insecurity? a) Poverty b) Climate change c) War and conflict d) Agricultural practices
In the Yellowstone National Park example, what happened to the aspen and willow trees after the extirpation of wolves? O a) herbivore populations increased b) herbivore populations declined c) plants declined in abundance d) plants increased in abundance e) no effect
In a community that has 4 trophic levels, what biomass of primary producers is necessary to maintain a tertiary consumer biomass of 1.78 kg/m^2? * a) 178 kg/m^2 b) 17800 kg/m^2 c) 1780 kg/m^2 d) 17.80 kg/m^2
12)Net primary productivity group of answer choices a)is the rate at which producers manufacture chemical energy by photosynthesis minus the energy used in respiration b)is the rate at which producers use chemical energy through respiration. c)is the rate at which producers manufacture chemical energy through photosynthesis. d)is the rate at which producers manufacture chemical energy by respiration minus the energy used in photosynthesis e)relates to how many cars can be made per hour on an assembly line 13) The two most important factors that determine the different types of terrestrial biomes found in the world are: Group of answer choices a)Precipitation and temperature b)Light and wind c)Temperature and soil d)light and oxygen e)Wind and precipitation
1) list the inputs for a named commercial food production system (for example a corn field in indiana) 2) list the outputs for the same commercial food production system, 3) list the inputs for subsistence farming in a rural area of equador 4) list the outputs for the same subsistence farming in a rural area of equador 5) which method is more sustainable?
A human population of 10,000 individuals has a birth rate of 90 per every 1000 persons and a death rate of 16 per every 1000 individuals. Calculate the yearly increase of the population growth. a) 740 individuals/year b) 74 individuals/year c) 10,074 individuals/year d) 11,074 individuals/year

SEE MORE QUESTIONS

Recommended textbooks for you

Aquaculture Science

Aquaculture Science

Biology

ISBN:

9781133558347

Author:

Parker

Publisher:

Cengage

Aquaculture Science

Aquaculture Science

Biology

ISBN:

9781133558347

Author:

Parker

Publisher:

Cengage

SEE MORE TEXTBOOKS