Abiotic Factors
What is an abiotic factor?
nonliving things in the ecosystem
What is a biotic factor?
living things in the ecosystem
What is the most common way for plants to make food?
photosynthesis
Which energy model is the most simple out of the 3 we learned?
food chain
What is the only continent without a grassland?
What is the most common gas in the atmosphere?
nitrogen
Is bacteria a biotic factor?
yes
How does energy move in an ecosystem?
it flows
What happens to the available energy as it is transferred from one organism to another?
it decreases
What is the world's longest river?
the Nile
What are the 3 parts of climate?
temperature, wind, moisture
True or False: if something happens to a biotic factor, it will not affect other parts of the ecosystem
false
How does an organism get energy?
it has to eat/consume something
What do we call the model that shows all the feeding relationships within an ecosystem?
a food web
How many times can you recycle paper from trees?
6
What percent of the human body is water?
~65%
Where do chemosynthetic organisms live?
ocean floor (or hot springs)
If a plant with 60 units of energy is consumed by an herbivore, how much energy will the herbivore get?
6 units
What are the different steps of an energy pyramid called?
trophic levels
How many seas are in the world?
7
What are the 5 things that make up soil?
rocks, water, air, minerals, and remains
You can divide biotic factors down into 3 categories. What are they?
Producers, Consumers, Decomposers
0.78 units
What organisms are at the highest trophic level?
carnivores (apex predators)
What is the most biodiverse country in the world?
Brazil