Name that relationship
A mosquito lands on your arm and sucks your blood for nutrients
What is parasitism?
True or false: a tree with bugs and birds on it is an ecosystem
True
plants that obtain their energy from the sunlight are part of which trophic level?
producers
What do decomposers eat?
dead plants and animals
In the water cycle, the water moving down a mountain is referred to as this
what is runoff?
An oxpecker eats delicious insects off of a rhino and the rhino has a reduced chance of infection from the insects
What is mutualism?
True or false: an ecosystem contains only the biotic factors.
False, they contain biotic and abiotic factors
would producers be classified as biotic or abiotic?
biotic
What are the 4 basic needs of living things?
air, water, food, shelter
When water changes from a gas to a liquid in the atmosphere
condensation
A remora fish attached itself under a shark and feeds off the remains of the meals of larger fish. The shark doesn't even notice the remora is there
What is commensalism?
What is a "population" made of?
a group of organisms of the same species
Foxes can eat rabbits. Which level would they fit into?
Secondary consumer
What would happen to an ecosystem if a top predator went extinct?
Long winded explanation
When water evaporates off of a leaf it is called
transpiration
Two animals interact and live closely with each other. One, or both, may benefit from this relationship.
What is symbiosis?
On a food web: if a deer eats some tree bark, should the arrow point towards the deer or the tree?
Towards the deer. The arrow points in the direction that energy flows
What percentage of the energy is lost for each trophic level? (hint: NOT the amount that is passed on)
90%
air, water, soil, sunlight
name 3 ways carbon is released into the atmosphere
- animal respiration
- decomposition
- plant respiration
- fossil fuel combustion
What are four reasons that animals might enter a symbiotic relationship with another animal?
1. protection from predators
2. access to food
3. reduced chance of infection/disease
4. easy transportation/safe housing, etc
What is the difference between a community and an ecosystem?
A community only contains the biotic factors. an ecosystem contains the biotic and abiotic factors
True or false: A bear is only a quaternary consumer
False: bears can be primary consumers (when they eat berries), secondary consumers (when they eat rabbits), etc.
Heat
describe how fossil fuels fit into the carbon cycle
fossil fuels are formed after living organisms (plants and animals) are decomposed and over time with heat and pressure they turn into carbon-rich fossil fuels. They can be combusted (set on fire) at factories to produce energy. This releases carbon back into the atmosphere.