What is needed for all life on Earth, and is what many organisms are mostly made up of?
water
What is a biotic factor?
part of an ecosystem that is alive
What are producers?
organisms that make their own food
What is an herbivore?
an organism that eats producers
What percent of energy is available for the 3rd tropic level?
1%
the sun
What is a biotic factor of this school?
students or teachers
What type(s) of animal eat producers?
herbivores and omnivores
What is a carnivore
an organism that eats other consumers
If a raccoon eats corn that recieved 600 units of energy from the sun, how much energy will the raccoon receive?
60
What abiotic factor describes the average weather of an area?
climate
How many biotic factors are present in the statement "a cow and a goat eating grass?"
3
What are the 2 processes that producers can go through?
photosynthesis and chemosynthesis
Which type of organism is the second step in the food chain?
herbivores
If an insect eats plant material that received 30 units of energy from the Sun, how many units of energy will the insect receive?
3
What is the most common gas in the atmosphere?
nitrogen
Features of the environment that are or were once alive are called?
biotic factors
What is the chemical formula of the sugar that is the outcome of photosynthesis?
C6 H12 O6
Which organisms eat dead or decaying organic material?
Detritivores
If a caterpillar eats corn that received 600 units of energy from the Sun, and a raccoon eats the caterpillar, how many units of energy will the raccoon receive?
6
What are 3 things that soil is made up of?
rock, water, air, minerals, and remains
How does energy in biotic factors go through an ecosystem?
it does not cycle, it is linear
What is the most common molecule used in chemosynthesis?
carbon
What type of organism would be best prepared if a food source decreased?
omnivore
If a hawk that ate a rabbit received 70 units of energy, how much energy did the grass that the rabbit ate receive from the sun?
7,000