Symbiosis
True or False. Symbiotic relationships are relationships between organisms from the same species.
False
Biotic or Abiotic Factor: Water
Abiotic
What is the main source of energy for all organisms in food webs?
The sun
List the name of each trophic level on the energy pyramid.
Producers, primary consumers, secondary consumers, tertiary consumers.
FOOD WEB IMAGE: List the Primary Consumers in the food web
mouse, rabbit, goat
List the three symbiotic relationships.
Mutualism, commensalism, parasitism
What do herbivores eat?
Plants
What do secondary consumers eat?
What percent of energy does each tropic level receive from the previous trophic level?
10%
FOOD WEB IMAGEL List the secondary consumers in the food web
Owl, snake, cat, jackal, lion (technically)
Most holes used by bluebirds for nesting are chiseled out by woodpeckers. Bluebirds only use the holes once the woodpecker has abandoned it. What kid of symbiotic relationship is being described?
Commensalism
A lion kills and eats a zebra.
What kind of relationship is being described?
A. Commensalism
B. Predator-Prey
C. Parasitism
D. Mutualism
B. Predator-Prey
In food webs, who will receive energy FIRST? (Which tropic level?)
Producers
Which tropic level receives the LEAST amount of energy?
Tertiary consumers (I will accept "top level")
FOOD WEB IMAGE: List The tertiary consumers
Kite, Lion
The plover bird sits in a crocodile's mouth and eats the food in the crocodile's teeth. The crocodile gets clean teeth and can continue hunting. What kind of symbiotic relationship is this?
Mutualism
Deer are herbivores. What would happen to the deer population if an unusual amount of snow covered the ground for multiple weeks? Would it increase or decrease?
Decrease.
A simple food chain includes hawks, lizards, insects, and plants. What might happen to the other organisms in the food chain if the insect population is killed by humans?
Hawks and lizards will decrease due to lack of food. Plants might increase because there are no more insects feeding on them.
Which tropic level has the MOST energy available to it?
Producers
What would happen to the owl population if the mice population went extinct? Would it increase or decrease?
Decrease. It's food source is gone
Ostriches and gazelles feed next to each other. They both watch for predators. Because the visual abilities of the two species are different, they can identify different threats. What kind of symbiotic relationship is this?
Mutualism
A fire destroys the habitat of rabbits. Which is more likely to happen to the rabbit population?
A. They will move somewhere else or die
B. They will change color to blend in with their new environment
A.
Which statement best explains how the reduction of the elk population might have an affect on the bison population?
A. Fewer elk lead to bison being preyed on less
B. Fewer elk consumed producers, increasing the food available for the bison
C. Fewer elk lead to an increase in competition for resources between elk and bison
B.
If 10,000 kcal of energy is available to the producers, how much energy is available to the primary consumers?
1,000 kcal
What would happen to plants if all decomposers died?
Plants would Die because there is not enough nutrients in the soil