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Ecosystems
Scientific method
Species interaction
Sustainability/ Nutrient cycles
Systems
100
Mention 3 abiotic and 3 biotic components.
abiotic - sunlight, soil, temperature biotic - animals, plants, humans
100
A test designed to support or falsify a prediction.
Experimentation
100
What is the only population interaction in which one the species gets killed?
Predation
100
What is sustainability?
The ability of the earth’s various natural systems and human cultural systems and economies to survive and adapt to changing environmental conditions indefinitely.”
100
Mention the three types of systems.
Open, closed, isolated
200
What is the smallest and the biggest level organization of matter?
Atom, Biosphere
200
Give an example of a hypothesis regarding pollution due to traffic overload.
If there are more cars, the highest the pollution.
200
In species interaction, when a wolf eats a rabbit is an example of?
Predation
200
Explain how would the ecological footprint of a developed country difers from one of a developing one.
developed countries pollute more...
200
Which are the basic components of a system?
Storage, inputs, outputs and feedbacks
300
What would happen to the 2nd trophic level species if there are many plants in the area?
They will become more and more until they balance the population of plants by eating them.
300
The teachers want to check if applying an exam everyday will help the students have better grades at the end of the semester. What is the independent variable?
The application of the exams
300
Interaction where one of the parties gets benefited and the other one is not harmed or benefited.
Commensalism
300
How the water cycle works? Mention its two possibilities...
Evaporation, condensation, precipitation Transpiration, condensation, precipitation
300
Eating too many potato chips without getting satisfied would be a case of positive or negative feedback?
positive
400
What is the difference between a food chain and a food web. Give an example of each.
Food chain - one organism feeding on the other Food web - interaction between food chains
400
Two soccer games were played with each other in two different ocassions. They each won one game. What could have been a controlled variable in order for team 1 to win both?
the time of the day, the place, the same players... etc.
400
Symbiotic relationship in which one species gets nourishment from another organism called the host. Give an example.
Parasitism. Leeches, remoras, fleas, virus.
400
Describe the Carbon cycle.
Carbon is in the atmosphere, through photosynthesis, plants turn it into oxygen. Afterwards, animals eat the plants, the animals die and fossilize and later get burned, so the carbon is released to the atmosphere again.
400
The earth receives meteorites sometime, can it be considered an open system?
No... because they are very small parts, that do not get processed and do not generate an output.
500
Why there aren't any more trophic levels than 4?
Because the energy obtained would be minimal.
500
What can a group of scientists do to test a new drug?
Have a control group, experiment 3 different times, same demographical conditions of the people/or different...etc
500
Refers to close interactions between members of two species. Mention its three types and an example of each.
Symbiosis: parasitism, commensalism, mutualism
500
Describe the nitrogen cycle.
Nitrogen in the atmosphere, then nitrogen fixing bacteria trap it and place it in the soil. Plants grow and absorb nitrogen and later they are eaten by animals. They die and secret nitrogen as gas to the atmosphere.
500
Give an example of how there can be a negative system in a car.
Cooling system when its hot...