Prey and Energy
A lion weighs 200kg and must consume 350 kcal/kg to survive. What would be the correct mathematical equation used to determine how much energy the male lion must consume?
200kg X 350 kcal/kg=
Give an example of a food chain
Kelp -> Sea Urchin -> Sea Otter -> Killer Whale
Short term energy comes from which macromolecule?
Carbohydrates
Draw where carrying capacity would be on a graph
The stable line of the graph
What trophic level is always on the bottom of the energy pyramid?
Producers
A sea otter eats 20 urchins, 4 mussels, and 1 crab. One urchin has 130kcals available, One mussel has 75kcals available. One crab has 90kcals available. What equation would you use to figure out how much energy is available from eating just the 20 urchins?
(20 X 130)=
Give an example of a food web
Answers will vary
Long-term energy (fats) comes from which macromolecule?
Lipids
What variable goes on the x-axis?
Independent Variable
What is the title of the second trophic level on an energy pyramid?
Primary Consumer
A lion weighs 200kg and must consume 350 kcal/kg to survive. How many kilocalories (kcal) must the lion consume each day to maintain his body weight of 200kg?
70,000kcal
What is the difference between a food chain and a food web?
A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem.
Muscles comes from which macromolecule?
Proteins
What variable goes on the Y-axis?
Dependent Variable
What is the title of the third trophic level on the energy pyramid?
Secondary Consumers
A sea otter eats 20 urchins, 4 mussels, and 1 crab. One urchin has 130kcals available, One mussel has 75kcals available. One crab has 90kcals available. How much energy does the sea otter get from eating all the prey?
2,990kcal
What term describes, "powerful indirect interactions that can control entire ecosystems."
Trophic Cascade
Genetic material such as DNA is made from which macromolecule?
Nucleic Acids
Producers produce their energy through what main process
Photosynthesis
Fill in the blank: Each trophic level can only give ___ of its energy to the next level. The other ____ is used to live, grow, reproduce and is lost to the environment as heat.
10%, 90%
A sea otter weighs 18kg (40 pounds). To maintain weight, otters must consume 250 kilocalories per 1kg of body weight each day to survive. The sea otters eats 4,680kcal, did the sea otter obtain enough energy for the day?
Yes, the Otter needs 4.500kcal
As Meerkat weighs 50kg and has 5,000kcal available, a Warthog weighs 150kg and has 7,000kcal available, a Wildebeest weighs 250kg and has 12,000kcal available, a Zebra weighs 350kg and has 25,000kcal available. What is the correct pattern observed?
The larger the prey, the more energy obtained
What does each Macromolecule make?
Carbohydrates= Energy
Lipids=Fats
Proteins=Muscle
Nucleic Acids=Genetic Material
Consumers such as humans, get their energy though what process?
Cellular Respiration
There is 35,000,000kcals available at the producer level. How many kcals are available at the secondary level?
350,000kcal