Ecology
What is a carbon reservoir?
A place where carbon is stored.
What important elements make up life?
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous
How does carbon dioxide get back into the atmosphere? Select all that apply. It is released as solid waste excreted by animals. It is released when humans burn fossil fuels. It is released by plants and animals through the process of cellular respiration. It is released by plants through the process of photosynthesis.
It is released when humans burn fossil fuels. It is released by plants and animals through the process of cellular respiration.
How does carbon pass from plant to animal and animal to animal?
from feeding
How does a plant get the phosphorus it needs?
from soil
The place where an organism could live is called the _____niche.
fundamental
Ecology literally translates to the study of the
house
what does ecology study
how living things interact with each other AND with their physical (non-living) environment
What does the term biogeochemical cycles mean?
how matter cycles through an ecosystem or the biosphere
Where is phosphorus found in DNA?
on the outside of the molecule
Fertilizer typically contains
phosphorus and nitrogen.
Where does the carbon come from that the plant uses to create biomass?
the atmosphere (CO2)
what does "fixing carbon" mean
the carbon atoms are incorporated into the tissues of the plant.
In the history of Earth, what fundamental process repeats itself? The formation of matter. The destruction of matter. The recycling of matter.
The recycling of matter.
What is the major ingredient of all organic molecules
Carbon
A lichen is symbiotic relationship between ______________________.
algae and a fungus
Phosphorous is important for which biomolecules?
ATP and DNA
Why is carbon the "best" element?
Because it is so versatile and is a building element of life
What do we call the cycles that recycle matter in the biosphere and geosphere, the living and non-living parts of the Earth?
Biogeochemical cycles
Which of the following are found in the rich soil made from composting and are very important for plants and life in general? Select all that apply Nitrogen Water Oxygen Carbon
Nitrogen Carbon
abiotic factors
Non-living things
Nitrogen is an important element in what 2 biomolecules. (Choose all that apply) Nuleic Acids Proteins Carbohydrates Lipids
Nucleic Acids Proteins
What is a habitat?
Place where an organism lives and it includes both biotic and abiotic factors
How is the phosphorus cycle different from the carbon and nitrogen cycles?
Phosphorus is found in rocks.
What geochemical cycle recycles hydrogen and oxygen?
The water cycle
a limiting biotic factor is...
a living thing (prey) that organisms are in competition for to survive
A limiting abiotic factor is...
a non-living thing (ex: sunlight) that organisms are in competition for to survive
Nitrogen is fixed by what type of organism
bacteria
What is needed to make the nitrogen available to other organisms?
bacteria
What organism converts nitrogen in the soil back into nitrogen gas?
bacteria
Using too much fertilizer can add too much nitrogen to aquatic ecosystems. This can cause an algal bloom which
blocks sunlight and starves things of oxygen
Hydrocarbons (fossil fuels) are formed primarily from what organism? any autotroph all consumers dead plants living plants
dead plants
biotic factors
living things
Is it possible for two species to share the same niche?
no
Is it still a secondary consumer if it eats other secondary consumers
yes, they can still be considered a secondary consumer since they eat primary consumers in addition to eating other secondary consumers.